PROJECT HISTORY

ClientProjectLocationStart DateEnd DateDescription of WorkDrifting, Ft.Ore TonsBackfill Tons
Nevada Copper, Inc.Pumpkin HollowYerington, NV2023-06-01 00:00:00In Progress16′ x 16′ Development and 15′ x 15′ Ore Drifting, Shaft Access564600
Jervois Mining, USA.Idaho Cobalt ProjectSalmon, ID2021-08-01 00:00:00In ProgressHighwall, Portal, Development, Production Mining13194488770
i-80 Gold Corp.Granite Creek MineGolconda, NV2021-03-01 00:00:00In ProgressRehab, Drill Support, Bulk Sample, Development, Production, Backfilling17046155894266692
Nevada Gold Mines (Barrick Goldstrike Mines Inc.)Turquoise RidgeGolconda, NV2020-09-01 00:00:00In ProgressHigh Capacity Ground Support, Critical Development around 3rd Shaft2793823791545488
Nevada Gold MinesNorth PostCarlin, NV2020-04-01 00:00:00In ProgressRehab, Reinstall Utilities, Development Drifting18891540000
Nevada Gold Mines (Newmont Mining Corp.)VistaGolconda, NV2017-07-05 00:00:00In Progress14′ x 16′ Development, 14′ x 16′ Sill Cuts, Long Hole Stoping, Backfilling, Full Production Mining4428715161131158344
Nevada Gold Mines (Newmont Mining Corp.)LeevilleCarlin, NV2014-08-01 00:00:00In Progress15′ x17′ Development, Mining, Backfilling, Rehabilition, Installation of paste fill lines, various cellular filling51439225973479578
i-80 Gold Corp.Cove HelenBattle Mountain, NV2022-02-01 00:00:002023-08-31 00:00:00Portal Excavation, Portal, Development573800
Jerritt Canyon GoldSmithElko, NV2010-03-01 00:00:002023-06-30 00:00:0015′ x 15′ Development, Drift & Fill Mining, CRF, Shotcrete (as of 12/14)13434746484153751462
Jerritt Canyon GoldSSXElko, NV2014-06-12 00:00:002023-03-20 00:00:0015′ x 15′ Development, Drift & Fill Mining, CRF, Shotcrete, Cubex drilling10557636688304116264
Nevada Gold MinesCarlin East PortalsCarlin, NV2022-09-01 00:00:002023-04-01 00:00:00Two portals, 19′ x 20′ and 17′ x 18′24900
Sabre Gold Corp.Copperstone MineQuartzsite, AZ2021-09-01 00:00:002022-02-02 00:00:00Rehab, Reinstall Utilities. 000
Nevada Gold Mines (Barrick Goldstrike Mines Inc.)El NiñoCarlin, NV2018-07-08 00:00:002021-07-31 00:00:00Highwall stabilization, Two Portals, 16′ x 17′ Development, 15′ x 15′ Drift and Fill, CRF, Full Production Mining18476604427595217
University of ArizonaSan Xavier Minng LaboratoryTuscon, AZ2020-09-30 00:00:002021-03-31 00:00:00Portal and 350′ of 15′ x 15′ drifting to create a modern facility35900
Freeport McMoran Inc.Mayflower Frisco, CO2019-06-01 00:00:002020-06-01 00:00:0012′ x 14′ Drainage Tunnel, Raise, and associated works116000
Newmont Mining Corp.ChukarCarlin, NV2011-09-01 00:00:002019-12-31 00:00:00Portal, 16′ x 16′ Development, LHS & C&F Mining3120032090001952810
CRG Mining LLCGold Links MineOhio City, CO2017-07-01 00:00:002018-04-30 00:00:00New Portal, 15′ x 15′ development, drifting on vein, stope mining, support drilling efforts112715000
Newmont Mining Corp.Vista (Twin U/G)Golconda, NV2016-01-03 00:00:002016-10-15 00:00:0014′ x 16′ Development,14′ x 16′ Sill Cuts, Long Hole Test Stoping, Backfilling, Drill Support80080009000
Carlin ResourcesHollisterMidas, NV2016-05-15 00:00:002016-09-30 00:00:00Rehabilitation of Existing Workings, Support for various tours000
Jerritt Canyon GoldStarvation CanyonElko, NV2012-10-01 00:00:002016-04-26 00:00:00Portal, 15′ x 15′ Development, Establish Surface Infrastructure, Longhole stoping, limited cut and fill, CRF16800769730660230
Gullsil, LLCDiamond MineEureka, NV2015-09-14 00:00:002016-01-15 00:00:00Open historic portal, rehab 1,500′ of 4′ x 6′ tunnel000
Atna ResourcesPinsonHumboldt County, NV2014-05-20 00:00:002015-12-31 00:00:0015′ x 15′ Development, 13′ x 15′ cut and fill, limited long hole stoping, CRF backfill and Cubex definition drilling34007500062000
Juniper Mining, LLCGolden ChestMurray, Idaho2014-07-01 00:00:002015-10-11 00:00:0013′ x 15′ Development, Drift & Fill Mining, CRF Backfill, Narrow Vein 61595600039783
Waterton Global Mining Co.HollisterMidas, NV2014-08-11 00:00:002015-07-31 00:00:0016′ x 16′ Exploration Drive, Miscellaneous Rehab of existing workings.129200
Mojave Desert MineralsGold RoadOatman, AZ2014-10-01 00:00:002015-01-23 00:00:00Haulage Only Contract0200000
Newmont Mining Corp.Leeville MiningCarlin, NV2005-06-01 00:00:002014-06-12 00:00:0015′ x 17′ Development, 15′ x 15′, 15′ x 20′ Ore dev., LHS, Shotcrete8300018500004500000
Stockpile Reserves LLCFencemaker MinePershing Co., NV2013-07-01 00:00:002014-03-31 00:00:00Rehabilitate existing portal and workings, extract new ore14200
Curtis TungstenAndrew MineSan Gabriel Mtns, California2013-11-01 00:00:002014-01-31 00:00:00Rehabilitate exisiting mine, drive secondary escape, stoping706000
Newmont Mining Corp.Carlin East / Full HouseCarlin, NV2009-02-01 00:00:002013-12-31 00:00:00Combination LHS and underhand drift and fill to finish the mine25000389100410000
Veris Gold CorporationSSXElko, NV2012-06-25 00:00:002013-05-31 00:00:0015′ x 15′ Development, Drift & Fill Mining, CRF, Shotcrete35008500056000
Newmont Mining Corp.VistaGolconda, NV2011-02-15 00:00:002013-04-30 00:00:00Two Portals, 16′ x 16′ Exploration Drive, Diamond Drill Stations1630090000
Newmont Mining Corp.MidasMidas, NV2010-01-15 00:00:002013-03-22 00:00:0016′ x 17′, 15′ x 15′, and 9′ x 12′ Development, 7′ x 12′ Cut & Fill, Cellular Concrete Backfill27700450002000
Klondex Gold & Silver Mining CompanyFire CreekCrescent Valley, NV2010-10-01 00:00:002013-01-20 00:00:00Construct surface facilities, portal, exploration decline.5000
Newmont Mining Corp.Pete BajoCarlin, NV2010-11-15 00:00:002012-12-31 00:00:00Two Portals, 16′ x 16′ Development, Drift & Fill Mining, (As of 12/12)20300323000313000
Highlands, LLCButte HighlandsButte, MT2010-01-01 00:00:002012-06-01 00:00:0014′ x 16′ Development, Drill Stations, Exploration Project. Assist drilling effort while on stand-by.4500
Newmont Mining Corp.Exodus – Phase 2Carlin, NV2010-01-01 00:00:002012-03-31 00:00:00Portal #2, 16′ x 16′ Exploration Decline, 15′ x 15′ Development, LHS Mining238005500012500
Newmont Mining Corp.Deep StarCarlin, NV2010-07-01 00:00:002011-10-01 00:00:00Access historic 5050 and 4440 levels. Mine approximately 15,000 tons of ore.17502200026000
Genesis, Inc.Genesis MineTroy, MT2010-02-01 00:00:002010-10-30 00:00:00Drive 3,300′ of 20′ x 20′ Decline to access new ore block3300
Newmont Mining Corp.Chukar FootwallCarlin, NV2002-01-01 00:00:002009-12-31 00:00:00Portals, 15′ X 15′ development, LHS & C&F mining5200026200001250000
Great Basin GoldEsmeralda MineHawthorne, NV2009-07-20 00:00:002009-10-01 00:00:00Re-establish surface, dewatering, rehabilitation of 300′ of 11′ x 12′
Newmont Mining Corp.Deep PostCarlin, NV2009-05-15 00:00:002009-09-01 00:00:00Rehabilitation and active heading shotcrete application
Newmont Mining Corp.MidasMidas, NV2009-03-10 00:00:002009-05-15 00:00:00Mechanized bolting and support services for decline cave-in
Newmont Mining Corp.Exodus – Phase 1Carlin, NV2008-09-15 00:00:002009-05-15 00:00:00Portal, 16′ x 16′ Exploration Decline, Drill Stations6300
Mines ManagementMontanoreLibby, MT2008-08-15 00:00:002009-04-30 00:00:00Rehabilitation and pumping water in 18′ x 18′ Decline, Various training
Genesis, Inc.Genesis MineTroy, MT2008-07-01 00:00:002008-12-20 00:00:00Grout, Stabilize and drive through three fault zones, Mine room & pillar 20′ x 20′20040000
Newmont Mining Corp.Full HouseCarlin, NV2008-07-01 00:00:002008-08-30 00:00:00Rehabilitation of 1,500′, 15′ x 15′ Exploration Drift, Drill Stations850
Yukon Nevada GoldSmithElko, NV2008-07-01 00:00:002008-08-15 00:00:0015′ x 15′ Development, Drift & Fill Mining, CRF, Shotcrete50020001000
Barrick GoldPinson IIGolconda, NV2008-01-02 00:00:002008-06-30 00:00:0014′ x 16′ Development and Drill Stations1500
Placer Dome / BarrickGolden Sunlight 2Whitehall, MT2006-12-20 00:00:002008-06-30 00:00:00Portals, 15′ x 15′ Development, LHS, Rehab of GS #110000375000
Barrick / Meridian JVStormCarlin, NV2006-07-10 00:00:002008-06-30 00:00:00Rehabilitation, 15′ x 15′ Development, Drift & Fill Mining, Shotcrete10000160000150000
Placer Dome / BarrickCortez HillsCrescent Valley, NV2005-11-20 00:00:002008-06-30 00:00:00Portals, Twin 17′ x 18′ Developments, Various constructions22200
Placer Dome / BarrickGetchellGolconda, NV2002-12-20 00:00:002008-06-01 00:00:00Rehabilitation, 14′ x 14′ Drifting, Drift & Fill, LHS, CRF 2500017500001300000
Molycorp, Inc.QuestaQuesta, NM2006-01-10 00:00:002007-08-15 00:00:0011′ x 11′ Developments on draw point level12500
Barrick GoldWeird IICarlin, NV2005-12-01 00:00:002007-02-01 00:00:00Portal, 15′ x 15′ Develoment, Underhand Drift and Fill20008000050000
Atna ResourcesPinsonGolconda, NV2005-06-01 00:00:002006-04-01 00:00:00Portals, U/G shop, 14′ x 16′ Development, Drill stations3000
Newmont Mining Corp.Carlin EastCarlin, NV2004-08-10 00:00:002006-02-01 00:00:00Combination LHS and underhand drift and fill to finish the mine10008500050000
Newmont Mining Corp.Carlin MainCarlin, NV2004-08-10 00:00:002006-02-01 00:00:00Combination LHS and underhand drift and fill to finish the mine5001400010000
Barrick GoldWeird ICarlin, NV2005-08-01 00:00:002006-01-01 00:00:00Portal, 15′ x 15′ Develoment, Underhand Drift and Fill5002000012000
Barrick GoldBetze DriftCarlin, NV2004-08-01 00:00:002005-11-01 00:00:00Portal, 17′ x 17′ Development to Rodeo plus Exploration drifting4000
Snowbird ResortPeruvian TunnelSalt Lake City, UT2005-08-17 00:00:002005-10-15 00:00:00Portals, 11′ x 13′ tunnel through the mountain, shotcrete finished 9/2006.600
Queenstake Resources, USASteer ProjectElko, NV2004-04-01 00:00:002004-12-15 00:00:0014′ x 16′ Development and Cubex Drilling5000
Queenstake Resources, USAMCE ProjectElko, NV2004-06-01 00:00:002004-07-20 00:00:00Finishes LHS work at MCE while Steer was ramping up31000
Barrick GoldStorm Exploration DriftCarlin, NV2004-04-01 00:00:002004-07-10 00:00:0015′ x 15′ Development, Drifting for stope access, Cubex drilling2000
Placer Dome, LTDGolden SunlightWhitehall, MT2002-07-10 00:00:002004-02-01 00:00:00Portals, 14′ x 14′ Development drifting, LHS mining9150520000
Barrick GoldStorm RehabilitationCarlin, NV2003-05-15 00:00:002003-08-15 00:00:00Rehabilitation and reinstallation of utilities for 3,600′
Billings Bench Water Dist.Water TunnelBillings, MT2003-03-10 00:00:002003-04-15 00:00:00Shotcrete and bolting only
Phelps Dodge Corp.Henderson U/GHenderson, CO2002-06-15 00:00:002003-03-01 00:00:00Initial project was 7′ x 8′ water drifts, ended with 25′ x 33′ draw points 3000
Canyon Resources Corp.Briggs North Trona, CA2001-09-15 00:00:002002-08-31 00:00:00Portal, 14′ x 14′ Development, Inclined room and pillar with 75% extraction1500120000
Anglo Gold Corp., USASmith MineElko, NV2001-11-15 00:00:002002-04-15 00:00:0015′ x 15′ Development drifting and stope preparations2500
Newmont Mining Corp.SMD Rain Sub-ContractCarlin, NV1999-04-10 00:00:002002-04-15 00:00:00Continued Rain mining on a guaranteed $ / ounce delivered to portal600042100025000
Vortex Mining Vortex MineUtica, MT2000-10-01 00:00:002001-12-20 00:00:008′ x 9′ Trackless development plus 20,000′ Cubex RRC drilling300075000
Newmont Mining Corp.Deep PostCarlin, NV1999-04-15 00:00:002001-08-29 00:00:00Portals, 14′ x 15′ Multiple developments with various construction activity1350035000
Echo Bay Minerals Corp.Cove East, Cove South Battle Mountain, NV1999-03-15 00:00:002001-07-15 00:00:00Portals, 12′ x 12′ Development, LHS w/ delayed CRF and underhand drift & fill8500350000140000
Pegasus Gold Corp.Diamond Hill MineTownsend, MT1996-02-15 00:00:002000-12-20 00:00:00Portal, 14′ x 14′ Development with LHS and remote mucking12000850000
Glamis Gold Corp.Dee North U/G MineDunphy, NV1999-11-01 00:00:002000-12-15 00:00:00Combination LHS and underhand drift & fill3000315000120000
Anglo Gold Corp., USASSX MineElko, NV2000-08-15 00:00:002000-11-01 00:00:0070,000′ of sample drilling
Golden Arrow Mining LLCGolden Arrrow MineLewiston, MT2000-06-01 00:00:002000-09-15 00:00:005′ x 7′ Trackless development200
Newmont Mining Corp.Rain MineCarlin, NV1993-09-15 00:00:001999-04-01 00:00:00Portal, 10′ x 12′ Development, combination LHS and underhand D & F12000500000300000
Anglo Gold Corp., USASSX MineElko, NV1998-10-01 00:00:001999-03-15 00:00:0050,000′ of sample drilling
Newmont Mining Corp.Carlin MainCarlin, NV1995-05-15 00:00:001998-02-28 00:00:00Portal, 12′ x 12′ Development with combination LHS and underhand D & F5000200000120000
Newmont Mining Corp.Carlin WestCarlin, NV1996-03-01 00:00:001997-12-01 00:00:00Portal, 12′ x 12′ Development plus stope preparations3000
Newmont Mining Corp.Deep StarCarlin, NV1994-02-01 00:00:001996-09-01 00:00:00Portal, 14′ x 14′ Development drifting with various construction activity10000
Newmont Mining Corp.Carlin EastCarlin, NV1993-09-15 00:00:001995-09-15 00:00:00Portals, 14′ x 14′ Multiple heading development, test LHS mining with CRF500010000060000
The HomesteadHeber City, UTHomestead Hotpot1995-04-15 00:00:001995-08-15 00:00:00Portal, 6′ x 8′ Drift into center of hotpot for scuba diving access100
Battle Mountain Gold Corp.Crown Jewel ProjectOroville, WA1995-05-20 00:00:001995-05-30 00:00:00Portal closure with concrete and grouting
Diversified DevelopmentLone JackMt. Baker, WA1994-08-15 00:00:001994-11-01 00:00:00Open stoping on narrow gold vein2000
Diversified DevelopmentLone JackMt. Baker, WA1993-08-15 00:00:001993-11-15 00:00:00Open stoping on narrow gold vein2000
Echo Bay Minerals Corp.McCoy MineBattle Mountain, NV1990-04-01 00:00:001993-04-01 00:00:00BCI-2 stope drilling and blasting
Battle Mountain Gold Corp.Fortitude U/GBattle Mountain, NV1992-10-01 00:00:001993-03-01 00:00:00Portals, Three concurrent development areas with various mining methods300060000
Echo Bay Minerals Corp.Kettle River MineCurlew, WA1990-04-01 00:00:001992-12-15 00:00:00BCI-2 stope drilling and blasting
Precious Metals Inc. of TXKlondike ProjectKingston, NV1992-04-01 00:00:001992-11-15 00:00:0010′ x 10′ Development with inclined room and pillar slusher mining8002000
Fischer-Watt Gold Corp.Mystic MineSun City, AZ1992-04-01 00:00:001992-09-01 00:00:00Converted an out of control shrinkage stope to long-hole stoping100015000
Western Utility ContractorsDeer Creek PipelineProvo, UT1992-07-15 00:00:001992-08-15 00:00:00Backfilled 400′ of abandoned 8.5′ diameter pipeline
Alta Gold Corp.Red Ledge PropertyHalfway, OR1992-05-15 00:00:001992-07-15 00:00:00EPA Mine closure with helicopter support in Snake River Wilderness
Cyprus Pinos Altos Corp.Pinos Alto MineSilver City, NM1992-03-15 00:00:001992-05-01 00:00:00Raise cut outs plus raising
South Atlantic VenturesOracle Ridge MineSan Manuel, AZ1990-06-01 00:00:001992-01-15 00:00:0014′ x 14′ Development drifting, Room and pillar mining3000150000
Hecla Mining Corp.Apex ProjectSt. George, UT1990-03-01 00:00:001991-06-15 00:00:008′ x 10′ Developments plus 4′ x 6′ top cuts and underhand cut & fill150025000
Cedar ResourcesPlatoro ProjectPlatoro, CO1990-04-01 00:00:001991-01-15 00:00:00Exploration drifting3000
Magma Copper Corp.San Manuel MineSan Manuel, AZ1990-08-01 00:00:001990-11-01 00:00:00Cubex rotary reverse circulation drilling for leach water return
Cyprus Gold Corp.Copperstone MineParker, AZ1989-03-15 00:00:001989-06-01 00:00:00Portal, 7′ x 8′ Exploration into pit wall (First time out of a pit wall)400
Cedar ResourcesPlatoro ProjectPlatoro, CO1988-06-01 00:00:001989-06-01 00:00:0014′ x 14′ Development, Exploration drifting, test mining on a Vein4000
Western Utility ContractorsDeer Creek PipelineProvo, UT1989-04-01 00:00:001989-04-15 00:00:00Backfilled 400′ of abandoned 8.5′ diameter pipeline
Eastmaque Gold Corp.American Girl “B” ZoneWinterhaven, CA1986-03-01 00:00:001988-11-01 00:00:0012′ x 13′ Development drifting, Test mining, Various construction800020000
CoCa Mines, Inc.Cactus MineMojave, CA1987-05-01 00:00:001987-08-01 00:00:00Exploration drifting to drill hole intercepts300
Musto Exploration, LTDApex ProjectSt. George, UT1983-01-15 00:00:001987-07-01 00:00:00Development, Ore mining, Various construction300025000
Verdestone MiningVerdestone MineGardnerville, NV1982-08-01 00:00:001982-08-15 00:00:00Claim assessment work
Total10045862704237422044368