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PROPERTY, PLANT AND EQUIPMENT AND MINERAL PROPERTIES
12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
Plant and Equipment and Mineral Properties PROPERTY, PLANT AND EQUIPMENT AND MINERAL PROPERTIES
The following is a summary of property, plant and equipment:
December 31, 2020December 31, 2019
CostAccumulated
Depreciation
Net Book ValueCostAccumulated
Depreciation
Net Book
Value
Property, plant and equipment
Nichols Ranch$29,210 $(16,150)$13,060 $29,210 $(14,115)$15,095 
Alta Mesa13,626 (4,088)9,538 13,626 (3,179)10,447 
Equipment and other13,528 (12,505)1,023 12,900 (12,239)661 
Property, plant and equipment total$56,364 $(32,743)$23,621 $55,736 $(29,533)$26,203 

The net book value for the Nichols Ranch Project includes the value beyond proven and probable reserves ascribed to the processing plant, the Nichols Ranch wellfields and the Jane Dough project upon acquisition.
For the year ended December 31, 2020, the Company recorded $0.51 million (December 31, 2019 - $2.09 million) of depreciation expense related to Nichols Ranch, which is included in the capitalized costs to inventory on the Consolidated Balance Sheet.
The following is a summary of mineral properties:
 December 31, 2020December 31, 2019
Mineral properties
Uranerz ISR properties$25,974 $25,974 
Sheep Mountain34,183 34,183 
Roca Honda22,095 22,095 
Other1,287 1,287 
Mineral properties total$83,539 $83,539