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Exploration and Evaluation Expenditures (Tables)
 6 Months Ended
Dec. 31, 2021
Exploration And Evaluation Expenditures  
Disclosure of exploration and evaluation asset
               
    California    Arkansas      
    

Property

$

    

Property

$

    

Total

$

 
                
Acquisition costs:               
Balance, June 30, 2020   9,753,766    12,273,322    22,027,088 
Acquisition of property   3,897,975    945,501    4,843,476 
Effect of movement in foreign exchange rates   (883,192)   (1,111,336)   (1,994,528)
Balance, June 30, 2021   12,768,549    12,107,487    24,876,036 
Acquisition of property   115,611    1,269,930    1,385,541 
Effect of movement in foreign exchange rates   292,582    277,435    570,017 
Balance, December 31, 2021   13,176,742    13,654,852    26,831,594 
                
Exploration Costs:               
Balance, June 30, 2020   4,554,718    2,366,542    6,921,260 
Other exploration costs   10,757    408,853    419,610 
Effect of movement in foreign exchange rates   (412,424)   (214,287)   (626,711)
Balance, June 30, 2021   4,153,051    2,561,108    6,714,159 
Other exploration costs   11,019    180,383    191,402 
Effect of movement in foreign exchange rates   95,164    58,686    153,850 
Balance, December 31, 2021   4,259,234    2,800,177    7,059,411 
                
Balance, June 30, 2021   16,921,600    14,668,594    31,590,194 
Balance, December 31, 2021   17,435,976    16,455,029    33,891,005