Oglala Lakota County, South Dakota
Indian Health Service Hospital in Pine Ridge on the Pine Ridge Indian Reservation, November 2011
Location in the state of South Dakota
South Dakota's location in the U.S.
Founded	1875
Seat	None (de jure) Hot Springs (de facto)
Largest community	Pine Ridge
Area
• Total	2,097 sq mi (5,431 km2)
• Land	2,094 sq mi (5,423 km2)
• Water	2.8 sq mi (7 km2), 0.1
Time zone	Mountain: UTC-7/-6
Footnotes: For infobox source see

County Well Data

Well ID	Operator Name	Well Type	Well Status
40-113-05000	Amerada Petroleum Co.	Dry Hole	Abandoned
40-113-05001	H. O. English	Dry Hole	Abandoned
40-113-05002	Midwest Refinning Co.	Dry Hole	Abandoned
40-113-05003	GILLESPIE	Dry Hole	Abandoned
40-113-20001	Webb Resources Inc.	Dry Hole	Abandoned
40-113-20002	Petroleum Engineering an Mangagment Corp.	Dry Hole	Abandoned
40-113-20003	Petroleum Engineering an Mangagment Corp.	Dry Hole	Abandoned
40-113-20004	Integrity Oil and Gas Co.	Dry Hole	Abandoned

For data sources see