CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities:
Net loss	$ (35,459)	$ (108,044)
Adjustments to reconcile net loss from operating activities:
Loss from investment in McEwen Copper Inc. (Note 9)	36,680
Loss (income) from investment in Minera Santa Cruz S.A. (Note 9)	(4,751)	7,047
Dividends received from Minera Santa Cruz S.A. (Note 9)	383	295
Depreciation, amortization and depletion	24,009	24,286
Unrealized loss (gain) on marketable securities (Note 5)	176	(15,651)
Foreign exchange loss on marketable securities (Note 5)		9,858
Foreign exchange loss	281	41,186
Reclamation accretion and adjustments to estimate	1,126	539
Gain on disposal of property and equipment	(113)
Income and mining tax recovery	(6,297)	(2,829)
Stock-based compensation	2,142	354
Change in non-cash working capital items:
Change in assets related to operations	5,183	(4,689)
Change in liabilities related to operations	7,306	(8,099)
Cash provided by (used in) operating activities	30,666	(55,747)
Cash flows from investing activities:
Additions to mineral property interests and plant and equipment	(30,346)	(18,277)
Investment in McEwen Copper Inc. (Note 9)	(14,000)
Notes receivable from Timberline (Note 17)	(1,880)
Cash and restricted cash received from acquisition of Timberline Resources Corporation (Note 17)	1,132
Costs to acquire Timberline Resources Corporation (Note 17)	(52)
Investment in marketable securities (Note 5)	(79)	(33,907)
Proceeds from sale of marketable securities (Note 5)	82
Cash used in investing activities	(45,143)	(52,184)
Cash flows from financing activities:
Issuance of flow-through common shares, net of issuance costs (Note 12)	20,424
Proceeds from exercise of warrants	8
Proceeds from McEwen Copper Inc. financing		185,390
Principal repayment on long-term debt		(25,000)
Payment of finance lease obligations	(896)	(1,510)
Cash provided by financing activities	19,536	158,880
Effect of exchange rate change on cash and cash equivalents	(281)	(41,186)
Increase in cash, cash equivalents and restricted cash	4,778	9,763
Cash, cash equivalents and restricted cash, beginning of period	27,510	43,579
Cash, cash equivalents and restricted cash, end of period	32,288	53,342
Supplemental disclosure of cash flow information:
Interest paid	(2,928)	(3,231)
Interest received	737	42,565
Taxes paid	$ (401)	$ (5,735)