Ainsworth House

Built in 1886. Listed on the National Register of Historic Places in 1986.

From the record

“The Ainsworth House, also known as the Greet Ranch, was built in 1886 by homesteader Frank S. Ainsworth and his wife in Big Trails, Wyoming, in the Nowood Valley of Washakie County.”
Wikipedia article Ainsworth House (Big Trails, Wyoming), CC BY-SA 4.0.

One of 7 National Register listings published here for Washakie County · listed in 1986 · category: Building · built in 1886.

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

The listing

Address. Spring Creek Rd., Big Trails, 82442
When was it listed? September 1986
Category. building
Census division. Ten Sleep
When was it built? 1886
National Register reference number. 86002321 - 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

39 since 1994

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 39 fires within 5 miles of Ainsworth House between 1994 and 2020, burning about 5,585 acres in total. 34 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	34
Missing data/not specified/undetermined	4
Debris and open burning	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
14 September 1994	Natural	1.5 acres	Worland Field Office	DRY FORK
6 August 2004	Natural	under an acre	Worland Field Office	LAZY DOG
6 August 2004	Natural	under an acre	Worland Field Office	LION BONE
5 August 2011	Natural	26 acres	Worland Field Office	OTTER CREEK
4 August 2020	Natural	under an acre	Washakie County	MILLS
4 August 2020	Natural	under an acre	Wind River / Bighorn Basin District	ROCKY POINT
4 August 2011	Natural	under an acre	Wyoming State Forestry	not named
3 August 2020	Natural	under an acre	Wyoming State Forestry	MILLS

Every fire recorded in Washakie County

Mines and quarries near this property

6 within 5 miles

Regional context, not property-specific evidence. The federal mineral resources record lists 6 workings within 5 miles of Ainsworth House: 3 prospects, 2 occurrences, 1 past producer. None of them still produces. What was taken out: Bentonite, Gypsum-Anhydrite, Uranium, Sand and Gravel, Construction. 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
Gag Claims	Uranium	Occurrence
Star Pit	Sand and Gravel, Construction	Past Producer
Nowood River #5	Bentonite	Occurrence
Unknown	Bentonite	Prospect
Unknown	Gypsum-Anhydrite	Prospect
Unknown	Gypsum-Anhydrite	Prospect

Every working recorded in Washakie 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.

Sources for this property

National Archives record	The nomination case file for reference 86002321 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
Washakie County	All 7 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.