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PLANT AND EQUIPMENT AND MINERAL PROPERTIES (Tables)
6 Months Ended
Jun. 30, 2021
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment
The following is a summary of property, plant and equipment:
June 30, 2021December 31, 2020
CostAccumulated
Depreciation
Net Book ValueCostAccumulated
Depreciation
Net Book
Value
Property, plant and equipment
Nichols Ranch$29,210 $(17,168)$12,042 $29,210 $(16,150)$13,060 
Alta Mesa13,626 (4,542)9,084 13,626 (4,088)9,538 
Equipment and other14,285 (12,592)1,693 13,528 (12,505)1,023 
Property, plant and equipment total$57,121 $(34,302)$22,819 $56,364 $(32,743)$23,621 
Schedule of Summary of Mineral Properties
The following is a summary of mineral properties:
 June 30, 2021December 31, 2020
Mineral properties
Uranerz ISR properties $25,974 $25,974 
Sheep Mountain34,183 34,183 
Roca Honda 22,095 22,095 
Other 1,287 1,287 
Mineral properties total$83,539 $83,539