South Boise Historic Mining District

Listed on the National Register of Historic Places in 1975.

From the record

“The South Boise Historic Mining District, in Elmore County, Idaho and including Rocky Bar, Idaho, is a historic district which was listed on the National Register of Historic Places in 1975. It included eight contributing buildings and a contributing site on 8,640 acres (35.0 km2), or about a ten square mile area.”
Wikipedia article South Boise Historic Mining District, CC BY-SA 4.0.

One of 23 National Register listings published here for Elmore County · listed in 1975 · category: District.

Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service

The listing

Address. In Boise and Sawtooth National Forests, Rocky Bar and, 83647
When was it listed? December 1975
Category. district
Census division. Atlanta
National Register reference number. 75000629 - the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.

Fires near this property

57 since 1993

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 57 fires within 5 miles of South Boise Historic Mining District between 1993 and 2020, burning about 37,803 acres in total. 48 started naturally. None was recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

Reported cause	Fires
Natural	48
Recreation and ceremony	5
Missing data/not specified/undetermined	2
Smoking	2

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Date	Cause	Size	Reported by	Name on the report
8 September 2001	Recreation and ceremony	under an acre	Sawtooth National Forest	MARSH CR.
6 September 2019	Natural	under an acre	Boise National Forest	STEEL
6 September 2019	Natural	under an acre	Boise National Forest	BOILER
6 September 2003	Natural	under an acre	Boise National Forest	STEEL
27 September 1997	Natural	under an acre	Boise National Forest	LINCOLN CREEK #2
23 September 2004	Natural	under an acre	Boise National Forest	SOLDIER
23 September 1997	Natural	under an acre	Boise National Forest	PINTO CREEK
14 September 2001	Natural	under an acre	Boise National Forest	CAYUSE CREEK

Every fire recorded in Elmore County

Mines and quarries near this property

10 of 43 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 43 workings within 5 miles of South Boise Historic Mining District: 27 past producers, 7 prospects, 7 occurrences, 2 unknowns. None of them still produces. What was taken out: Gold, Silver, REE, Silver, Lead. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Site	Commodity	Status	Recorded
Commonwealth Mine	Gold, Lead, Zinc, Silver	Past Producer	Galena, Sphalerite
Elmore	Gold, Silver, Lead, Zinc	Past Producer
Feather River	REE, Garnet, Iron, Titanium, Zirconium	Unknown
Feather River Placer	REE, Titanium, Iron, Silver, Garnet, Gold, Zirconium	Past Producer	Placer
Idaho Gold Chief Prospect	Gold, Zinc, Lead, Silver	Past Producer	Galena, Scheelite, Sphalerite
Lison Mine	Gold, Arsenic	Past Producer	Vein
Marsh Creek Property	Gold, Copper, Lead, Zinc, Silver	Prospect	Chalcopyrite, Galena, Sphalerite
Ophir Mine	Gold, Silver, Lead, Zinc, Copper	Past Producer	Galena, Sphalerite
Passover Prospect	Gold, Lead, Silver	Past Producer	1937
Pittsburg Mine	Gold, Zinc, Lead	Unknown

Every working recorded in Elmore County

Map coverage status

No historic map-sheet match is published for this property yet. That does not mean no map exists. This record needs a coordinate-quality review before it can be joined to a sheet boundary. Browse the county's mapped places while that work is pending.

Listed places nearby

1 within 8 miles

Other National Register properties close enough to walk or drive between, ordered by distance from this one. Both positions come from the same geocoding pass that matched these properties to their map sheets.

Photograph	Property	Distance	Listed
	Featherville School	5.7 miles	2019

Sources for this property

National Archives record	The nomination case file for reference 75000629 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
Elmore County	All 23 listed properties in this county.

Provenance

Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.