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PROPERTY, PLANT AND EQUIPMENT
 12 Months Ended
Dec. 31, 2022
Disclosure of detailed information about property, plant and equipment [abstract]  
PROPERTY, PLANT AND EQUIPMENT PROPERTY, PLANT AND EQUIPMENT
Cost
Mine properties
(i)
Development properties
(ii)
Exploration, evaluation and pre-development properties
(iii)
Buildings, plant and equipmentTotal
Balance as at January 1, 2021$96,537 $30,902 $52,463 $18,490 $198,392 
Additions3,677 69,049 169,195 199,952 441,873 
Disposals— — — (3)(3)
IFRS 16 Right of Use assets — — — 634 634 
Change in estimate of provision for environmental rehabilitation— 318 1,762 — 2,080 
Transfers(355)2,703 (200)(2,148)— 
Adjustments— — — (26)(26)
Classified as held for sale(97,699)(26,587)— (10,658)(134,944)
Balance as at December 31, 20212,160 76,385 223,220 206,241 508,006 
Additions— 32,422 241 23,450 56,113 
Disposals— — — (24)(24)
IFRS 16 Right of Use assets— — — 280 280 
Transfers— 899 7,182 (8,081)— 
Change in estimate of provision for environmental rehabilitation— (994)(22,608)— (23,602)
Balance as at December 31, 2022$2,160 $108,712 $208,035 $221,866 $540,773 
Accumulated depreciation and impairment
Balance as at January 1, 2021$93,298 $— $— $4,938 $98,236 
Depletion, depreciation and amortization2,877 — — 3,481 6,358 
Disposals— — — (3)(3)
Classified as held for sale(94,015)— — (5,219)(99,234)
Balance as at December 31, 20212,160 — — 3,197 5,357 
Depletion, depreciation and amortization— — — 6,177 6,177 
Disposals— — — (22)(22)
Balance as at December 31, 2022$2,160 $— $— $9,352 $11,512 
Carrying amounts
Balance, December 31, 2021$— $76,385 $223,220 $203,044 $502,649 
Balance as at December 31, 2022$— $108,712 $208,035 $212,514 $529,261 
Mine properties:
PropertyJanuary 1,
2021		AdditionsTransfersDepletionClassified as held for saleDecember 31, 2021
 Ruby Hill, Nevada1$— $2,160 $— $(2,160)$— $— 
 South Arturo, Nevada 23,239 1,517 (355)(717)(3,684)— 
Total$3,239 $3,677 $(355)$(2,877)$(3,684)$— 
Development properties:
PropertyJanuary 1, 2022AdditionsChange in estimate of environmental provisionTransfersClassified as held for saleDecember 31, 2022
South Arturo, Nevada$— $— $— $— $— $— 
Granite Creek, Nevada76,385 32,422 (994)899 — 108,712 
Total$76,385 $32,422 $(994)$899 $— $108,712 

PropertyJanuary 1,
2021		AdditionsChange in estimate of environmental provisionTransfersClassified as held for saleDecember 31, 2021
South Arturo, Nevada$23,402 $482 $— $2,703 $(26,587)$— 
Granite Creek, Nevada7,500 68,567 318 — — 76,385 
Total$30,902 $69,049 $318 $2,703 $(26,587)$76,385 
Exploration, evaluation and pre-development properties:
PropertyJanuary 1, 2022AdditionsChange in estimate of environmental provisionTransfersClassified as held for saleDecember 31, 2022
McCoy-Cove, Nevada$54,105 $— $(84)$7,182 $— $61,203 
Ruby Hill, Nevada103,594 — (10,705)— — 92,889 
Lone Tree, Nevada65,521 — (12,988)— — 52,533 
Argenta, Nevada — 241 1,169 — — 1,410 
Total$223,220 $241 $(22,608)$7,182 $— $208,035 

PropertyJanuary 1,
2021		AdditionsChange in estimate of environmental provisionTransfersClassified as held for saleDecember 31, 2021
McCoy-Cove, Nevada$52,213 $— $1,842 $50 $— $54,105 
Ruby Hill, Nevada— 103,674 (80)— — 103,594 
Rodeo Creek, Nevada250 — — (250)— — 
Lone Tree, Nevada— 65,521 — — — 65,521 
Total$52,463 $169,195 $1,762 $(200)$— $223,220 
Depreciation, depletion and amortization on property, plant and equipment during the year ended December 31, 2022 and 2021 include amounts allocated to:
Year ended
December 31,
20222021
Depreciation, depletion and amortization$4,528 $— 
Recorded in exploration, evaluation and pre-development484 198 
Recorded in general and administrative346 163 
Recorded in property maintenance816 — 
Depreciation, depletion and amortization capitalized into properties215 — 
Depreciation, depletion and amortization in discontinued operations— 1,691 
6,389 2,052 
Inventory movement(212)4,306 
Total depletion, depreciation and amortization$6,177 $6,358 
The Company’s leased assets include buildings and vehicles. Right-of-use assets include:
BuildingsEquipmentVehiclesTotal
As at December 31, 2020$91 $— $3 $94 
Additions635 — — 635 
Terminations26 — — 26 
Depreciation118 — 3 121 
As at December 31, 2021582 — — 582 
Additions— 280 — 280 
Depreciation212 128 — 340 
As at December 31, 2022$370 $152 $— $522 
ImpairmentThe Company regularly reviews the carrying amount of its non-financial assets to determine whether there is any indication that those assets have suffered an impairment loss. Mineral property interests are tested for impairment when events or changes in circumstances indicate that their carrying amount may not be recoverable. In the absence of other factors, a mineral property that has not been actively explored within the past three years and for which no future exploration plans exist will be considered to be impaired. There were no impairments recorded for the year ended December 31, 2022, and 2021.Acquisitions and option agreements
Granite Creek Project

As disclosed in Note 1(b) of these Financial Statements, the Granite Creek Project was acquired through the acquisition agreement with Osgood and Christison. The purchase price paid in 2021 was a combination of non-cash shares and warrants of $38.0 million and cash of $23.2 million. In 2020, $2.3 million in cash was paid on deposit to Waterton on the purchase of Osgood; and $7.5 million in cash was paid for the Christison Project, which was transferred into the Granite Creek Project in 2021.

On May 6, 2022, the Company entered into an agreement to acquire strategic land sections adjoining the Company’s Granite Creek Property from NGM. The total consideration for the purchase of the property sections consists of a cash payment of $4.0 million and the inclusion of the acquired sections into the existing 10% net profits royalty that NGM currently holds on the existing property.

In September 2022, the Company paid to Waterton $5.0 million as part of the contingent value rights payment due upon the public announcement of a positive production decision related to the Granite Creek Project. As further described in Note 1(b) of these Financial Statements, on acquisition of Osgood the Company did not recognize contingent payments as the conditions required for these payments had not been met as of the date the assets were acquired. The $5.0 million contingent value rights payment is recorded in property, plant and equipment on the consolidated statements of financial position at December 31, 2022.

Tabor Exploration and Option Agreement

On August 24, 2020, the Company through its wholly owned subsidiary Au-Reka Gold Corporation ("Au-Reka") entered into an option agreement with Renaissance Exploration, Inc. to acquire a 100% interest in the Tabor Project located in Esmeralda County, Nevada. The option agreement is subject to a firm commitment to spend $0.3 million towards exploration activities by the one-year anniversary date that the Company acquires an exploration permit on the property plus initial earn-in option payments of $5.2 million.
Summary of mineral property Net Smelter Return ("NSR") royalties (as at December 31, 2022)
Active propertiesNSR (i)
McCoy-Cove, Nevada
1.5% NSR Maverix Metals Inc.
2% NSR Maverix Metals Inc.
Tabor, Nevada
3% NSR Renaissance
Granite Creek
1-4% NSR Royal Gold/D.M. Duncan
3-5% NSR Royal Gold/D.M. Duncan
2% NSR Franco-Nevada/S&G Pinson
Portions of 7.5% NSR Stoffer/Noceto/Phillips
2% NSR Stoffer/Noceto/Phillips/Murphy/Christison
10% NPI Nevada Gold Mines
2% Newmont Capital Limited
Lone Tree
3% NSR
5% NSR VEK/Andrus
1% NSR Franco-Nevada Mining Corporation, Inc.
4-5% NSR Marigold Mining Company
5% NSR Richardson
5% NSR BTF Properties
Ruby Hill
2.5% NSR Placer Dome U.S. Inc.
3% Biale Trust
4% NSR Asarco Incorporated
3% RG Royalties
Inactive propertiesNSR
Rodeo Creek, Nevada
2% NSR Nevada Select Royalty Inc
South Arturo, Nevada
4-9% Annual minimum royalty Franco-Nevada Corporation
(i)These royalties are tied to specific mining claims and may not apply to the entire property.