Sour Dough Flat, Montana

7 topographic sheets cover this place, the earliest surveyed in 1954 and the latest in 1985. It stands in the Chinook census division. It lies in ZIP code area 59535. The Survey maps it on the Nolan Reservoir quadrangle. The federal gazetteer marks this settlement historical: it is no longer a populated place, though the surveys that recorded it still are.

Sour Dough Flat within Blaine County

Topographic sheets covering this place

3 surveys from 7 printed sheets

Matched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.

1954 USGS Lewistown quadrangle1:250000, 3 printings
1959 USGS Lewistown quadrangle1:250000, 3 printings
1985 USGS Saddle Rock quadrangle1:24000

Fires near this place

9 since 2003

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 9 fires within 5 miles of Sour Dough Flat (historical) between 2003 and 2016, burning about 335 acres in total. 9 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	9

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 2013	Natural	2.1 acres	Malta Field Office	COW ISLAND
9 August 2011	Natural	under an acre	Malta Field Office	SAWTOOTH
6 August 2003	Natural	300 acres	Northeastern Land Office	not named
25 August 2005	Natural	under an acre	North Central Montana District	NO DATE
2 August 2008	Natural	4.0 acres	North Central Montana District	COW ISLAND
6 July 2009	Natural	6.4 acres	Malta Field Office	PINE
21 July 2012	Natural	12 acres	Malta Field Office	COAL MINE
1 July 2016	Natural	3.0 acres	Malta Field Office	SIVERTSEN

Settlements close enough to share some of these fires:

Every fire recorded in Blaine County

Nearest settlements

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

Place	Distance	Sheets
Riedel (historical)	1.5 miles	7
Leroy	9.2 miles	8
Maddux	10.0 miles	8
Hosey (historical)	11.6 miles	7
Golf Bench (historical)	13.2 miles	7
Hungry Hollow (historical)	14.8 miles	8
Ragland Bench (historical)	15.1 miles	7
Bearpaw (historical)	17.6 miles	10

Provenance

This settlement is recorded in the Geographic Names Information System as feature 1722413. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.

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.