Note 4 - Mineral Properties (Tables)

9 Months Ended

Feb. 28, 2019

Notes Tables

Capitalized Costs Relating to Acquisition Activities Disclosure [Table Text Block]

	North Bullfrog		Mother Lode		Total
	(note 4a))		(note 4b))
Balance, May 31, 2018	$	4,428,752	$	810,037	$	5,238,789
Cash payments (note 4a)(ii)(1)		47,318		—		47,318
Shares issued (note 4a)(ii)(1)		59,500		—		59,500
Asset retirement obligations		—		1,742		1,742
Currency translation adjustments		75,567		13,829		89,396
Balance, February 28, 2019	$	4,611,137	$	825,608	$	5,436,745

Cost Incurred in Acquisition Exploration and Evaluation Activities Disclosure [Table Text Block]

	North Bullfrog		Mother Lode		Total
	(note 4a))		(note 4b))
Exploration costs:
Assay	$	2,990	$	439,889	$	442,879
Drilling		1,239		1,438,354		1,439,593
Equipment rental		—		49,655		49,655
Field costs		356		187,757		188,113
Geological/ Geophysical		28,362		483,319		511,681
Land maintenance & tenure		337,178		258,274		595,452
Permits		7,546		90,907		98,453
Studies		85,578		719,095		804,673
Travel		3,731		83,961		87,692
Total expenditures for the period	$	466,980	$	3,751,211	$	4,218,191

	North Bullfrog			Mother Lode		Total
	(note 4a))			(note 4b))
Exploration costs:
Assay	$	44,148		$	576,806	$	620,954
Drilling		(3,265	)		1,423,671		1,420,406
Equipment rental		15,698			65,678		81,376
Field costs		32,121			236,373		268,494
Geological/ Geophysical		66,473			456,948		523,421
Land maintenance & tenure		267,977			125,699		393,676
Permits		6,395			92,254		98,649
Studies		473,213			115,415		588,628
Travel		10,243			69,537		79,780
Total expenditures for the period	$	913,003		$	3,162,381	$	4,075,384