Document and Entity Information - USD ($)	12 Months Ended
	Sep. 30, 2018	Dec. 18, 2018	Mar. 31, 2018
Details
Registrant Name	Oroplata Resources, Inc.
Registrant CIK	0001576873
SEC Form	10-K
Period End date	Sep. 30, 2018
Fiscal Year End	--09-30
Trading Symbol	ORRP
Tax Identification Number (TIN)	331227980
Number of common stock shares outstanding		102,114,239
Public Float			$ 4,679,307
Filer Category	Non-accelerated Filer
Current with reporting	Yes
Voluntary filer	No
Well-known Seasoned Issuer	No
Shell Company	false
Small Business	true
Emerging Growth Company	true
Ex Transition Period	false
Amendment Flag	false
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Entity Incorporation, State Country Name	Nevada
Entity Address, Address Line One	930 Tahoe Blvd. Suite 802-16
Entity Address, City or Town	Incline Village
Entity Address, State or Province	NV
Entity Address, Postal Zip Code	89451
Entity Address, Address Description	Address of principal executive offices
City Area Code	775
Local Phone Number	473-4744
Phone Fax Number Description	Registrant's telephone number