COMMITMENTS AND CONTINGENCIES (Tables)

12 Months Ended

Dec. 31, 2019

COMMITMENTS AND CONTINGENCIES

Schedule of minimum amounts under purchase commitments, long term leases covering office space, exploration expenditures, option payments on properties

	Payments due by period
	2020		2021		2022		2023		2024		Thereafter		Total
Mining and surface rights		2,926		465		470		366		335		—		4,562
Reclamation costs(1)		2,548		4,115		4,637		2,279		549		27,637		41,765
Other plant and equipment		1,249		—		—		—		—		—		1,249
Exploration		219		—		—		—		—		—		219
Total	$	6,942	$	4,580	$	5,107	$	2,645	$	884	$	27,637	$	47,795

(1) Amounts presented represent the undiscounted uninflated future payments.