First Flag Unfurling Site, Lewis and Clark Trail

Listed on the National Register of Historic Places in 1975.

From the record

“The First Flag Unfurling Site is a historic site along the route of the Lewis and Clark Expedition in Lemhi County, Idaho. The site is located in the Bitterroot Mountains, 5 miles (8.0 km) north of the community of Tendoy.”
Wikipedia article First Flag Unfurling Site, Lewis and Clark Trail, CC BY-SA 4.0.

One of 13 National Register listings published here for Lemhi County · listed in 1975 · category: Site.

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

The listing

What is counted as historic. The nomination lists 1 site as contributing to the listing.
Address. 5 mi. N of Tendoy in Bitterroot Mountains, Tendoy, 83467
When was it listed? August 1975
Category. site
Census division. Salmon
National Register reference number. 75000635 - 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

14 since 1994

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 14 fires within 5 miles of First Flag Unfurling Site, Lewis and Clark Trail between 1994 and 2019, burning about 9 acres in total. 11 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	11
Recreation and ceremony	1
Equipment and vehicle use	1
Missing data/not specified/undetermined	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
23 September 1999	Equipment and vehicle use	under an acre	Salmon-Challis National Forest	KENNEY CREEK
8 August 2010	Natural	under an acre	Idaho Falls District	PATTEE
21 August 1998	Natural	under an acre	Salmon-Challis National Forest	FLUME
20 August 1999	Natural	under an acre	Idaho Falls District	SANDY
2 August 1999	Natural	under an acre	Salmon-Challis National Forest	AGENCY
18 August 2006	Natural	1.0 acres	Salmon-Challis National Forest	KENNEY
10 August 2000	Natural	under an acre	Idaho Falls District	SANDY
10 August 2000	Natural	5.0 acres	Salmon-Challis National Forest	PATTEE

Every fire recorded in Lemhi County

Mines and quarries near this property

10 of 36 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 36 workings within 5 miles of First Flag Unfurling Site, Lewis and Clark Trail: 21 occurrences, 7 unknowns, 4 past producers, 4 prospects. None of them still produces. What was taken out: Thorium, Thorium, REE, REE, 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
Kenney Nuclear Prospect	Gold, Lead, Copper, Zinc	Occurrence	Vein
Last Chance Occurrence	Gold, Thorium, Copper	Past Producer	Thorite
Lucky Strike Prospect	Lead, Gold, Copper	Past Producer	Vein
Nuclear Fuels and Rare Metals Corp.	Thorium, Gold, Copper, Uranium, Silver, REE	Prospect	1949
Pattee Creek Workings	Copper, Iron	Prospect
Sandy	Uranium, Thorium	Occurrence
Sandy Creek Placer	Silver, Gold	Past Producer	Placer
Sharkey Hot Springs	Geothermal	Occurrence
Silver Queen Claims	Silver, Uranium, Thorium, Gold, Lead	Occurrence
Silver Queen No. 37	Uranium, Thorium	Occurrence	Surface

Every working recorded in Lemhi County

Storms near this property

1 since 2026

Regional context, not property-specific evidence. The National Weather Service names Tendoy, the town this property stands in, in 1 storm report in 2026: 1 flood. 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
January 2026	Flood	Tendoy	-	The Lemhi River exceeded action stage on the 27th and reached minor flood stage on the 28th. This caused yard flooding south of Tendoy, between Mabee Lane and McDevitt Creek Road, though no homes were impacted. The river crested at 7.07 feet at 2:00 PM MST on the 29th at the Lemhi River near Lemhi gauge, then receded that evening as ice broke up.

Every storm recorded in Lemhi 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
	Lemhi Pass	6.9 miles	1966

Sources for this property

National Archives record	The nomination case file for reference 75000635 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
Lemhi County	All 13 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.