4. MINERAL PROPERTIES AND EXPLORATION COSTS: Schedule Of Mineral Property Acquisition Costs Capitalized On The Consolidated Statements of Operation (Details) - USD ($)	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Ures Property
Property Capitalized On Consolidated Statement Of Operations, Balance	$ 2,364,394	$ 2,364,394	$ 2,289,780
Property Capitalized On Consolidated Statement Of Operations, Cash Payments	0	26,539
Property Capitalized On Consolidated Statement Of Operations, Share-based Payments	0	48,075
Santa Elena Mine
Property Capitalized On Consolidated Statement Of Operations, Balance	7,310,547	7,156,889	6,778,952
Property Capitalized On Consolidated Statement Of Operations, Cash Payments	130,158	377,937
Property Capitalized On Consolidated Statement Of Operations, Share-based Payments	23,500	0
Property Capitalized On Consolidated Statement Of Operations, Balance	9,674,941	9,521,283	$ 9,068,732
Property Capitalized On Consolidated Statement Of Operations, Cash Payments	130,158	404,476
Property Capitalized On Consolidated Statement Of Operations, Share-based Payments	$ 23,500	$ 48,075