Jensen Ranch

Listed on the National Register of Historic Places in 1988.

From the record

“The Jensen Ranch, 16 miles (26 km) southwest of Boulder, Wyoming, USA, was established by the Danish immigrant Metinus Jensen in 1905. It passed from the family as a working ranch after three generations.”
Wikipedia article Jensen Ranch (Boulder, Wyoming), CC BY-SA 4.0.

One of 20 National Register listings published here for Sublette County · listed in 1988 · category: District.

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

The listing

Address. Martin Jensen County Rd., Boulder, 82923
When was it listed? May 1988
Category. district
Census division. Boulder
National Register reference number. 88000552 - 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

3 since 1993

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 3 fires within 5 miles of Jensen Ranch between 1993 and 2013, burning about 25 acres in total. 1 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
Debris and open burning	1
Natural	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
7 July 2007	Natural	20 acres	Pinedale Field Office	POCKET CREEK FIRE
20 October 2013	Debris and open burning	1.0 acres	Wyoming State Forestry	not named
1 January 1993	Missing data/not specified/undetermined	4.0 acres	Wyoming State Forestry	not named

Every fire recorded in Sublette County

Mines and quarries near this property

3 within 5 miles

Regional context, not property-specific evidence. The federal mineral resources record lists 3 workings within 5 miles of Jensen Ranch: 2 producers, 1 unknown. 2 still produce. What was taken out: 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
Bousman	Sand and Gravel, Construction	Producer
Jones	Sand and Gravel, Construction	Producer
Speedway Pit	Sand and Gravel, Construction	Unknown

Every working recorded in Sublette County

Storms near this property

5 since 2005

Regional context, not property-specific evidence. The National Weather Service names Boulder, the town this property stands in, in 5 storm reports between 2005 and 2018: 4 hail, 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
July 2018	Hail	Boulder	-	A trained spotter reported nickel size hail to the east of Boulder.
March 2007	Thunderstorm Wind	Boulder	-	Measured wind gust on home weather station.
July 2005	Hail	Boulder	-	no account filed
July 2005	Hail	Boulder	-	no account filed
July 2005	Hail	Boulder	-	no account filed

Every storm recorded in Sublette 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
	Emerson School	1.8 miles	2025

Sources for this property

National Archives record	The nomination case file for reference 88000552 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
Sublette County	All 20 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.