ASX Announcement | 16 September 2025 Variscan Mines Limited (ASX:VAR) EXCELLENT HISTORIC SURFACE DRILLING RESULTS OVER NEW GRANTED LICENCES Highlights • Acquisition of 146 historic drillholes for 52,034 metres, delivering multiple high-grade zinc (Zn) and lead (Pb) intercepts across newly granted licences. • Outstanding assays from Hipolita Licence over the footprint of former Reocin Mine and its extensions, including: o o o o o o • 24.0m @ 12.3% Zn, 0.4% Pb 20.9m @ 14.0% Zn, 0.8% Pb 17.6m @ 14.7% Zn, 0.7% Pb 9.5m @ 24.7% Zn, 1.2% Pb 2.7m @ 36.3% Zn, 2.2% Pb 12.5m @ 7.0% Zn, 0.4% Pb Esperanza and Ana Isabel licences return significant mineralisation: o o o o • • • S-10: S-457: S-414: S-17: S-6: S-89: S-21: S-163: S-162: S-161: 15.0m @ 6.4% Zn, 0.0% Pb, and 6.0m @ 9.6% Zn, 0.0% Pb 10.8m @ 4.4% Zn, 0.0% Pb 12.0m @ 3.5% Zn, 0.1% Pb, and 5.8m @ 6.0% Zn, 0.0% Pb 7.1m @ 5.6%Zn, 0.0%Pb, and 3.2m @ 8.1% Zn, 0.0% Pb Newly integrated historic drilling data provides significant time and cost saving Project drilling database now consists of 1,221 drillholes for 138,570 metres Historic drilling results over the newly acquired licence areas are outside the current MRE supporting a larger, longer-term, de-risked Zinc district scale exploration and development opportunity Variscan Mines Limited (ASX:VAR) (“Variscan” or the “Company”) is pleased to report that 146 historic drillhole records covering the newly acquired licences in 2025, which expanded the Novales (San Jose)-Udías Project in northern Spain, have been identified in historical archives contained at the School of Mines & Energy Engineering, University of Cantabria. Acquisition of Historic Surface Drilling Data Over New Licence Areas Following the grant of new licence areas in Q2 2025, (refer ASX announcement 13 April 2025), Variscan has undertaken a significant data collation exercise at the substantial archive hosted at the School of Mines & Energy Engineering, University of Cantabria located in Torrelavega (~16km from San Jose Mine). These newly acquired historic drillhole results formed the geological foundation for the Reocin Mine which was operated by Xstrata until 2003 and now present a valuable resource for future development planning. Drilling 52,000m today is estimated to cost in excess of A$12.9 million (€7.3 million) and take several years. The acquisition of the historic drill database not only represents a significant saving in both time and money for Variscan but also provides valuable data to support future exploration programmes over the licence areas more efficiently and effectively. Figure 1. Map of historic drilling results reported overlain on Variscan Mines land tenure in Cantabria 2 Figure 2. Map of historic drilling results reported and underlying district scale geology Results from Hipólita licence bring into focus extensions to the Reocín Deposit The wide, high-grade drilling results recorded over the Hipólita licence are particularly noteworthy. 90 of the 146 drillholes identified are over the Hipólita licence accounting for 39,694 metres and supporting our exploration interest over possible unmined extensions of mineralization and wider exploration opportunity around the Reocín Mine. Whilst our immediate priorities are focused on commencing production from the San Jose Mine, the Hipólita licence could be very important as a longer-term opportunity, with potential to expand mineral resources and scale production in the future. The full extent of mine development at the Reocín Mine 3 has to be established. As of this moment, due to a lack of detailed mine plans from the time of mine closure, it is not known whether the area surrounding the high-grade intercepts in the northeast quadrant of the license was mined or designated as reserves for future mining. However, it is reported that Reserves of at least 2.5Mt were remaining at the end of mining operations in 2003, with average grades of 8.5% Zn and 0.9% Pb 1. The Reocín Zn-Pb Mine is located within the Santillana syncline in the Basque-Cantabrian basin, about 30km southwest of Santander and 9km southeast from the San Jose Mine. It is the largest known stratabound carbonate-hosted Zn-Pb deposit in Spain2 and one of the world’s largest known Mississippi Valley Type (MVT) deposits3. The total metal endowment of the deposit, including past production and remaining reserves, is approximately 62 Mt of ore grading 8.7% Zn and 1.0% Pb4. Figure 3. Plan view of historical drillholes over the terrain of the Hipólita licence 1 Velasco, F., Herrero, J.M., Yusta, I., Alonso, J.A., Seebold, I. and Leach, D., (2003) ‘Geology and Geochemistry of the Reocin Zinc-Lead Deposit, Basque-Cantabrian Basin, Northern Spain’ Econ. Geol. v.98, pp. 1371-1396. 2 Velasco, F., Herrero, J.M., Yusta, I., Alonso, J.A., Seebold, I. and Leach, D., (2003) ‘Geology and Geochemistry of the Reocin Zinc-Lead Deposit, Basque-Cantabrian Basin, Northern Spain’ Econ. Geol. v.98, pp. 1371-1396. 3 Leach, D.L, Sangster D.F, Kelley, K.D, Large D.D, Garven, G, Allen, C.R, Gutzmer, J, Walters, S, (2005) ‘Sediment-hosted lead zinc deposits: a global perspective’ Econ. Geol. 100th Anniversary Special Paper pp. 561-607 4 Velasco, F., Herrero, J.M., Yusta, I., Alonso, J.A., Seebold, I. and Leach, D., (2003) ‘Geology and Geochemistry of the Reocin Zinc-Lead Deposit, Basque-Cantabrian Basin, Northern Spain’ Econ. Geol. v.98, pp. 1371-1396. 4 Figure 4. Plan view of drillholes over the Hipólita licence overlain on Reocín Mine workings from 2001. Figure 5. Zinc Price Performance (1960-August 2025) Source: World Bank Commodity Price Data 5 As noted above, there are indications of reserves remaining in situ at the Reocín Mine at the time of closure in March 2003. Examining the prevailing price environment may be instructive as a contributing factor to the decision to cease operations. The zinc price at time of Reocín Mine closure was $791/t5. Whereas current zinc prices are trading at a 3.5x premium with an average price of $2,789/t during August 2025. District Scale Opportunity The Cantabria region is a proven multi-deposit zinc district. MVT zinc-lead deposits usually occur in extensive districts consisting of several to as many as 400 deposits6. The drilling results over the new licence areas add significant scale with mineralisation identified stepping from the San Jose Mines towards the Reocin Mine over the Santillana syncline, where multiple zinc ore deposits occur. This presents a district-scale advanced exploration and development opportunity over multiple mines and proven mineralized areas which are typically high-grade, as well as very prospective underexplored targets. This supports the company’s Explorer-Producer strategy which aims to scale up production, initially at the San Jose Mine, to multiple deposits and develop the long-term opportunity funded by those operations. Significant archive of historical drilling data As a former mining district, there has been significant historical drilling activity over the existing and new licences that comprise the Novales-Udias Project. A large amount of historical archive information including drillhole data is stored at the School of Mines & Energy Engineering, University of Cantabria in nearby Torrelavega. This is a significant resource of information that has already contributed to the Project’s existing Mineral Resource Estimate. The archive is expected to yield further information to support the Company’s development of the Project. Next Steps & Way Forward The San Jose/Novales-Udías Project continues to progress, with the following demonstrable milestones expected: • • • • 5 6 Further assay results from underground drilling at the Udias Mine Results from metallurgical test work for inclusion in the Mine Re-Start (Scoping) Study Results from geotechnical test work for inclusion in the Mine Re-Start (Scoping) Study Publication of the Mine Re-Start (Scoping) Study World Bank Commodity Price Data [https://www.worldbank.org/en/research/commodity-markets] US Geological Survey (2010) ‘A Deposit Model for Mississippi Valley Type Lead-Zinc Ores’ Scientific Investigations Report 2010-5070-A 6 Variscan’s Managing Director & CEO, Stewart Dickson, said: “The acquisition of this historical drilling data is very valuable. It represents a significant saving in both time and cost. The replacement value of this drilling is estimated to be A$12.9 million. More importantly, the drilling emphasises the high-grade quality and district-scale potential of the Novales-Udias Project. As the drilling reported is outside of the current Mineral Resource Estimate, there is genuine potential to add significant tonnage and scale to this high-quality project. It is a compelling de-risked, brownfield opportunity with a realistic prospect of near-term production building in scale over the mid-long term. We are delivering on our clear strategy to unlock value via re-starting production and exploration at one of the highest-grade, development stage zinc deposits in Europe, which is continuing to produce excellent results and make substantial progress.” ENDS To ask questions directly to the Variscan management team and access media content, visit our interactive investor website at: https://variscan.com.au/s/aa7e61 This ASX announcement has been approved by the Board and authorised for issue by Mr Stewart Dickson, Managing Director and CEO, Variscan Mines Limited For further information, please contact: Variscan Mines Limited (ASX:VAR) Stewart Dickson Managing Director & CEO E: stewart.dickson@variscan.com.au T: +44 (0) 7799 694195 Media & Investor Enquiries Jane Morgan Management Chloe Hayes / Jane Morgan E: chloe@janemorganmanagement.com.au / jm@janemorganmanagement.com.au P: + 61 (0) 458619317/ +61 (0) 405 555 618 We encourage all investors to share questions on this announcement via our interactive investor hub: [https://variscan.com.au/s/8fe6d0] Or scan the QR code. Subscribe to our news alert service: https://variscan.com.au/s/8d46e7 Subscribe to our news alert service: [HUB SIGN UP] 7 About Variscan Mines Limited (ASX:VAR) To learn more, please visit: www.variscan.com.au For more information Follow us on LinkedIn Follow us on Twitter Visit our investor website: www.variscan.com.au 8 Project Summary The Novales-Udias Project is located in the Basque-Cantabrian Basin, some 30km southwest from the regional capital, Santander. The project is centred around the former producing San Jose underground mine with a large surrounding area of brownfield exploration opportunities which include a number of satellite underground and surface workings and areas of zinc anomalism identified from recent and historic geochemical surveys. Variscan has delineated a significant 9km mineralised trend and a sub-parallel 3km trend from contemporary and historical data across both the Buenahora exploration and Novales mining permits. The San Jose Mine is nearby (~9km) to the world class Reocin Mine which is the largest known strata-bound carbonate-hosted Zn-Pb deposit in Spain7 and one of the world’s richest MVT deposits 8. Further, it is within trucking distance (~172km) from the San Juan de Neiva zinc smelter operated by Asturiana de Zinc (100% owned by Glencore). Significantly, the Novales-Udias Project includes a number of granted mining tenements 9. Novales-Udias Project Highlights • • • • • • • • • • • • Near term zinc production opportunity (subject to positive exploratory & development work) Updated JORC compliant Mineral Resource Estimate of 3.4Mt @ 7.6% Zn, 0.9 %Pb released in December 202410 Expanded tenement holding of 111 km2 (including a number of granted mining tenements) Regional exploration potential for another discovery analogous to Reocin Mine (total past production and remaining resource 62Mt @ 8.7% Zn and 1.0% Pb 11 12) Trucking distance (~ 171km) from the San Juan de Nieva smelter (Glencore owned) Classic MVT carbonate-hosted Zn-Pb district Historic production of high-grade zinc from San Jose Mine; average grade reported as ~7% Zn 13 with super high grade ‘bolsas’ (mineralised pods and lenses) commonly 10-20% Zn and in some instances +30% Zn14 Maiden drilling at Udias Mine Simple mineralogy of sphalerite – galena – calamine Mineralisation is strata-bound, epigenetic, lenticular and sub-horizontal Access and infrastructure all in place Local community and government support due to historic mining activity Velasco, F., Herrero, J.M., Yusta, I., Alonso, J.A., Seebold, I. and Leach, D., (2003) ‘Geology and Geochemistry of the Reocin Zinc-Lead Deposit, Basque-Cantabrian Basin, Northern Spain’ Econ. Geol. v.98, pp. 1371-1396. 8 Leach, D.L., Sangster, D.F., Kelley, K.D., Large, R.R., Garven, G., Allen, C.R., Gutzner, J., Walters, S., (2005) ‘Sedimenthosted lead-zinc deposits: a global perspective’. Econ. Geol. 100th Anniversary Special Paper 561 607 9 Refer to ASX announcement of 29 July 2019 7 10 Refer to ASX announcement of 8 December 2024 Velasco, F., Herrero, J.M., Yusta, I., Alonso, J.A., Seebold, I. and Leach, D., 2003 - Geology and Geochemistry of the Reocin Zinc-Lead Deposit, Basque-Cantabrian Basin, Northern Spain: in Econ. Geol. v.98, pp. 1371-1396. 12 Cautionary Statement: references in this announcement to the publicly quoted resource tonnes and grade of the Project are historical and foreign in nature and not reported in accordance with the JORC Code 2012, or the categories of mineralisation as defined in the JORC Code 2012. A competent person has not completed sufficient work to classify the resource estimate as mineral resources or ore reserves in accordance with the JORC Code 2012. It is uncertain that following evaluation and/or further exploration work that the foreign/historic resource estimates of mineralisation will be able to be reported as mineral resources or ore reserves in accordance with the JORC Code 2012. 13 These figures have been taken from historical production data from the School of Mines in Torrelavega historical archives. 14 Reports of the super high-grade mineralisation are supported with historical production data from the School of Mines in Torrelavega historical archives. (Refer ASX release 29 July 2019) 11 9 Figure 6. Map of Novales-Udias Project Licence Areas Figure 7. Map of Novales-Udias Project Licence Areas and local infrastructure 10 Mineral Resource Estimate for Novales-Udias Project JORC Mineral Resource Estimate for San Jose Mine and north-eastern Udías by deposit and classification reported above at 2% Zn+Pb cut-off (ASX announcement 9 December 2024) Competent Person Statement The information in this document that relates to exploration results is based on and fairly represents information and supporting documentation compiled and reviewed by Dr. Mike Mlynarczyk, Principal of the Redstone Exploration Services, a geological consultancy acting as an external consultant for Variscan Mines. Dr. Mlynarczyk is a Professional Geologist (PGeo) of the Institute of Geologists of Ireland, and European Geologist (EurGeol) of the European Federation of Geologists, as well as Fellow of the Society of Economic Geologists (SEG). With over 14 years of full-time exploration experience in MVT-style zinc-lead systems in several of the world’s leading MVT provinces, Dr. Mlynarczyk has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the December 2012 edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves” (‘JORC Code’). Dr. Mlynarczyk consents to the inclusion in the report of the matters based upon the information in the form and context in which it appears. Where reference is made to previous releases of exploration results and mineral resource estimates in this announcement, the Company confirms that it is not aware of any new information or data that materially affects the information included in those announcements and all material assumptions and technical parameters underpinning the exploration results and mineral resource estimates included in those announcements continue to apply and have not materially changed. Refer ASX announcements: - 31 July 2025 June Quarterly Activities Report - 9 December 2024 Threefold increase in High Grade Mineral Resource Estimate for Novales-Udias Project Where information in this document relates to previous exploration results that was prepared pre-2012 JORC code. It is the opinion of Variscan that the exploration data is reliable. Although some of the data is incomplete, nothing has come to the attention of Variscan that causes it to question the accuracy or reliability of the historic exploration. 11 Forward Looking Statements Forward-looking statements are only predictions and are not guaranteed. They are subject to known and unknown risks, uncertainties and assumptions, some of which are outside the control of the Company. Past performance is not necessarily a guide to future performance and no representation or warranty is made as to the likelihood of achievement or reasonableness of any forward-looking statements or other forecast. The occurrence of events in the future are subject to risks, uncertainties and other factors that may cause the Company’s actual results, performance or achievements to differ from those referred to in this announcement. Given these uncertainties, recipients are cautioned not to place reliance on forward looking statements. Any forward-looking statements in this announcement speak only at the date of issue of this announcement. Subject to any continuing obligations under applicable law and the ASX Listing Rules, the Company, its directors, officers, employees and agents do not give any assurance or guarantee that the occurrence of the events referred to in this announcement will occur as contemplated. 12 JORC Table 1, Sections 1 and 2 Section 1 Sampling Techniques and Data Criteria JORC Code explanation Commentary Sampling techniques • Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling. • Include reference to measures taken to ensure sample representativity and the appropriate calibration of any measurement tools or systems used. • Aspects of the determination of mineralisation that are Material to the Public Report. • In cases where ‘industry standard’ work has been done this would be relatively simple (eg ‘reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay’). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information. • Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if • Drilling techniques • • • • • The data referenced in this report relates to exploration undertaken by major mining companies operating in Cantabria from the 1920’s to the late 1990’s, i.e., the Real Compania Asturiana de Minas (RCAM) and from 1983 the Asturiana de Zinc (AZSA). This historical data is held at the School of Mines and Energy Engineering at Torrelavega, a faculty of the University of Cantabria. The drilling reported here was surface drilling, and it is understood that all of it was core drilling, but no drill core was preserved to date. The data presented here has been compiled from scanned detailed drill hole logs, historical reports and maps. Some of these holes have incomplete data and out of a total of 146 drillholes for which drill collar coordinates are available (Appendix 1), assays are available for only 71 holes (Appendix 2). Due to the incomplete nature of the historical drill data and records, including procedures, a comment on the sample representativity or calibration of measurement tools or systems used by historic workers cannot be made. Further comment regarding specific components of the historic drilling is provided in subsequent sections of this table. The data cannot be considered ‘industry standard’ by modern standards. It has been assumed that all reported assays are representative of technology available at the time, but no reliance has been put on it. The historic surface drilling reported here is understood to be all core drilling. No details of the drilling techniques employed have been identified in the historic data. This includes reference to core diameter(s), core orientation methods, nor down hole survey data. This release relates to 146 historical surface drillholes, 139 of which (52,034m) have sufficient data to be projected in 3D, and of which 71 have downhole assay data. These holes 13 Criteria JORC Code explanation Commentary so, by what method, etc). Drill sample recovery • • • Logging • • • Subsampling techniques and sample preparation • • • • • Method of recording and assessing core and chip sample recoveries and results assessed. Measures taken to maximise sample recovery and ensure representative nature of the samples. Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material. Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies. Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography. The total length and percentage of the relevant intersections logged. If core, whether cut or sawn and whether quarter, half or all core taken. If non-core, whether riffled, tube sampled, rotary split, etc. and whether sampled wet or dry. For all sample types, the nature, quality and appropriateness of the sample preparation technique. Quality control procedures adopted for all sub-sampling stages to maximise representativity of samples. Measures taken to ensure that the sampling is representative of • • • • consist of 107 vertical, 34 inclined and 5 holes with no dip indicated. No records of the type of drill rig used have been identified. No records of core recovery have been identified for most of the historic data. However, recovery data is available for a small proportion of the newly acquired surface drillhole logs and exhibits a very wide range from <50% up to >90%, however, in some cases recoveries have been recorded to be as low as 20%. Given the absence of core recovery data, it is not possible to assess the potential of a relationship between sample recovery and grade. The absence of drill recovery data means that reported grades may be subject to either over or under-reporting. No assessment or estimation of these effects has been made due to the lack of data. • Hardcopy geological logs have been digitized for the drillholes presented. No geotechnical logs have been identified. The drill hole information reported here is not of a sufficient level of detail to support a Mineral Resource Estimation, mining or metallurgical study. • In the absence of detailed data, no comment on whether the logging, where observed, is qualitative or quantitative can be made. No core photography has been identified. • The historical geological logs have varying degrees of detail and most include detailed information including: lithological logging, stratigraphic column, downhole deviation, collar XYZ positions, hole orientation and detailed descriptions. • Historic approach to sampling appears selective, guided by geological observation and no “apparent” waste was sampled. • No details of the sub-sampling or sample preparation techniques have been identified from the historical records and no supporting sampling procedures have been identified. It is believed that in most cases half-core was submitted for analysis, which in the second half of the 20th century was carried in-house at the Torres laboratory near Torrelavega. • In the absence of this data and other data related to the subsampling techniques and sample preparation, no cannot comment on the appropriateness of the sample preparation techniques has been made. • No evidence of Quality Control procedures nor results have been identified. This includes evidence of field duplicates or 14 Criteria JORC Code explanation • Quality of assay data and laboratory tests • • • Verification of sampling and assaying • • • • the in-situ material collected, including for instance results for field duplicate/second-half sampling. Whether sample sizes are appropriate to the grain size of the material being sampled. The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total. For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc. Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established. The verification of significant intersections by either independent or alternative company personnel. The use of twinned holes. Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols. Discuss any adjustment to assay data. Commentary other current industry standard quality control procedures, such as Certified Reference Materials and blanks. • In the absence of sample size data, no comment on whether the sample size is appropriate to the grain size of the sampled material has been made. • No descriptions of the assaying and laboratory procedures used have been found. It is unknown whether the techniques used are partial or total, nor the laboratory used in case of drilling pre-dating WW2. • No descriptions of quality control procedures adopted by the laboratory, nor any results of any related Quality Control data, has been identified. No comment can be made on whether acceptable accuracy or precision of results has been established. • Due to the historic nature of the results reported and drill core not being preserved, it has not been possible to verify significant intersections. It is not known whether verification of intersections was undertaken by previous operators at the time of drilling. • The historic data does not include any twinned holes. Variscan is considering twinning some historic drill holes as part of the company´s exploration plans. • No documentation or records of data entry procedures, data verification, data storage (physical and electronic) protocols have been identified. • Historic records consist largely of handwritten drill hole summaries. This data was identified and transcribed to Microsoft Excel © and then imported into Leapfrog Geo for drill hole database validation, significant intersections, and 3D viewing. • Given the absence of detailed historical information relating to the assay data, no adjustment to the assay data has been made. The data has been reported in the Appendices to this news release as it was recorded in the original 15 Criteria JORC Code explanation Commentary • Location of data points • Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation. • Specification of the grid system used. • Quality and adequacy of topographic control. • • • • Data spacing and distribution Orientation of data in relation to geological structure • Data spacing for reporting of Exploration Results. • Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied. • Whether sample compositing has been applied. • • Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type. • If the relationship between the drilling orientation and the • • documentation. Variscan have no reason to disbelieve the data as presented in the historical logs, however, understand the limitations of the data for use in reliable and classified mineral resource estimations going forward until assay verification has been achieved to a satisfactory standard. This release relates to all 146 historic surface drill holes collated to date. Only 71 of these holes include downhole assay data. The method of recording collar coordinates by the historic operating companies has not been identified. It is noted that much of the drilling was undertaken prior to the ubiquitous use of modern GPS by industry. The accuracy of reported drill hole collars has not been determined. Collar coordinates relating to the historic drill holes reported were identified in a local grid and transformed to the European Terrestrial Reference System 1989 (ETRS89), an earth-centre, earth-fixed geodetic Cartesian reference frame for GIS work. Thus, 2D maps (Figures) used in this report have been made with ETRS89. The quality and adequacy of the topographic control on the location of collar points has not been assessed. Collation