Powder House

Listed on the National Register of Historic Places in 1987.

From the record

One of 18 National Register listings published here for Madison County · listed in 1987 · category: Building.

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

The listing

Address. 1/2 mi. SE of Pony on Potosi Rd., Pony, 59747
When was it listed? August 1987
Category. building
Also known as. Pony MRA
Census division. Harrison
National Register reference number. 87001266 - 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

10 since 2000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 10 fires within 5 miles of Powder House between 2000 and 2020, burning about 5,253 acres in total. 5 started naturally. 1 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	5
Recreation and ceremony	2
Debris and open burning	1
Missing data/not specified/undetermined	1
Arson/incendiarism	1

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
6 September 2020	Recreation and ceremony	32 acres	Beaverhead-Deerlodge National Forest	CATARACT
15 September 2020	Natural	2.5 acres	Madison County	HWY 359
15 September 2020	Arson/incendiarism	27 acres	Madison County	WILSON LANE
25 August 2000	Natural	1.0 acres	Central Land Office	not named
21 August 2020	Natural	3.8 acres	Beaverhead-Deerlodge National Forest	POTOSI
25 July 2019	Missing data/not specified/undetermined	30 acres	Madison County	SITZ LANE-NO ACTION
12 July 2009	Natural	under an acre	Beaverhead-Deerlodge National Forest	PONY FIRE
24 June 2012	Natural	5,157 acres	Beaverhead-Deerlodge National Forest	PONY

Every fire recorded in Madison County

Mines and quarries near this property

10 of 61 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 61 workings within 5 miles of Powder House: 33 past producers, 15 occurrences, 10 prospects, 3 producers. 3 still produce. What was taken out: Gold, Silver, Gold, Silver, Copper. 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
Antelope-Pony	Platinum, Iridium, Osmium	Occurrence
Antelope-Pony District	Chromium, Osmium, Iridium	Occurrence	Chromite
Arizona	Gold, Silver, Copper	Past Producer
Blue Rock and May Basket	Lead, Silver, Molybdenum	Prospect
Boss Tweed and Clipper	Gold, Silver, Iron, Copper	Past Producer
Bozeman Mine	Gold, Zinc, Silver, Lead	Past Producer
Clark's Warm Springs	Geothermal	Occurrence
Garnet Gold Mine	Gold, Lead, Copper, Zinc, Silver	Past Producer
Garnet Mine	Silver, Lead, Gold, Copper, Zinc	Past Producer	Galena
Independent	Tungsten, Gold, Silver, Copper, Lead, Iron	Occurrence	1906

Every working recorded in Madison County

Storms near this property

1 since 2019

Regional context, not property-specific evidence. The National Weather Service names Pony, the town this property stands in, in 1 storm report in 2019: 1 thunderstorm wind. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

When	Event	Place named	Harm	What the report says
August 2019	Thunderstorm Wind	Pony	-	Beaverhead/Deerlodge National Forest Personnel estimated between 200 to 250 acres of trees were blown down from a severe thunderstorm that moved over the area. the blow down resulted in a trail leading back to Granite Lake in the Tobacco Root Mountains to become blocked. At least four people became stranded and had to be rescued by the joint effort of the Madison County Search and Rescue, Forest Service Fire Team, and US Airforce helicopter support. A storm survey conducted by National Weather Service Great Falls discovered that this event was a microburst.

Every storm recorded in Madison 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

2 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
	Pony Historic District	1.0 miles	1987
	Strawberry Mine Historic District	3.0 miles	1987

Sources for this property

National Archives record	The nomination case file for reference 87001266 in Record Group 79.
Madison County	All 18 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.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.