Note 9 - Income Taxes: Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)	Sep. 30, 2018	Sep. 30, 2017
Timberline Resources Corp.
Deferred Tax Assets Exploration Costs	$ 218,000	$ 684,000
Deferred Tax Assets, Investments	184,000	282,000
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	1,451,000	2,181,000
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax	2,000	2,000
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	697,000	697,000
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	10,579,000	15,097,000
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	1,736,000	1,736,000
Deferred Tax Assets, Gross	14,867,000	20,679,000
Deferred Tax Assets, Valuation Allowance	(14,867,000)	(20,679,000)
Deferred Tax Assets, Net of Valuation Allowance	0	0
BH Minerals USA, Inc.
Deferred Tax Assets Property Plant Ad Equipment, Subsidiary	(2,282,000)	(3,807,000)
Deferred Tax Assets Exploration Costs, Subsidiary	810,000	1,709,000
Deferred Tax Assets Operating Loss Carryforward Domestic, Subsidiary	3,302,000	5,091,000
Deferred Tax Assets, Gross, Subsidiary	1,830,000	2,993,000
Deferred Tax Assets Valuation Allowance, Subsidiary	(1,830,000)	(2,993,000)
Deferred Tax Assets, Net, Subsidiary	$ 0	$ 0