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Note 4 - Property and Equipment
12 Months Ended
Dec. 31, 2017
Notes to Financial Statements  
Property, Plant and Equipment Disclosure [Text Block]
NOTE
4
– PROPERTY AND EQUIPMENT
 
The following is a summary of property, plant, and equipment
– at cost, less accumulated depreciation:
 
    December 31,  
   
201
7
   
201
6
 
Land
  $
500,000
    $
500,000
 
Land improvements
   
171,122
     
171,122
 
Buildings
   
3,129,519
     
3,129,519
 
Mining equipment
   
1,784,115
     
1,775,884
 
Milling equipment
   
2,841,726
     
2,806,834
 
Laboratory equipment
   
607,716
     
607,716
 
Office equipment
   
70,529
     
69,900
 
Vehicles
   
150,810
     
150,810
 
     
9,255,537
     
9,211,785
 
Less: Accumulated depreciation
   
(6,453,146
)    
(5,136,609
)
Total
  $
2,802,391
    $
4,075,176