Listed on the National Register of Historic Places in 2015.
From the record
“The Doncaster Round Barn, also called "Bayers' Barn" and "the Round Barn at Twin Bridges" is a three-story, wood-framed round barn located about 1.5 miles (2.4 km) north of Twin Bridges, Montana. Built about 1882 by mining entrepreneur Noah Armstrong to house his race horses, and featuring a 20 feet (6.1 m)-wide indoor circular aisle that was used for exercising horses, it is a National Register of Historic Places property notable for both its architecture and being the birthplace of the Thoroughbred racehorse Spokane, who won the 1889 Kentucky Derby.”
Wikipedia article Doncaster Round Barn, CC BY-SA 4.0.
One of 18 National Register listings published here for Madison County · listed in 2015 · category: Building.
National Register reference number. 15000150 - assigned by the National Park Service when the property was listed.
Fires near this property
7 since 1992
Regional context, not property-specific
evidence. The
federal wildfire occurrence database
lists 7 fires within 5 miles of Doncaster Round Barn
between 1992 and 2020, burning about 23 acres in total. 1 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
Debris and open burning
2
Natural
1
Equipment and vehicle use
1
Missing data/not specified/undetermined
1
Arson/incendiarism
1
Power generation/transmission/distribution
1
The most recent of
them, most recent first, with the day each was reported and the service
that recorded it.
Regional context, not property-specific
evidence. The federal mineral resources record lists
18 workings within 5 miles of Doncaster Round Barn: 6 past producers, 5 unknowns, 4 prospects, 2 occurrences.
1 still produces. What was taken out: Gold, Sand and Gravel, Construction, Silver, Silver, Lead. Distance is straight-line from the
map coordinates, so a quarry counted here may appear on a neighbouring
settlement's page as well.
Regional context, not property-specific
evidence. The National Weather Service names
Twin Bridges, the town this property stands in, in 8 storm reports between 1995 and 2016: 4 hail, 2 thunderstorm wind, 1 flood, 1 funnel cloud.
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.
An ice jam on the Ruby River just south of Twin Bridges (upstream of the Seyler Lane Bridge) caused minor flooding of low-lying areas. Pasture land and a few outbuildings were affected.
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.
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.
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