Listed on the National Register of Historic Places in 1978.
From the record
“The Colorado National Guard Armory, known commonly by locals simply as the Armory, is a landmark in Golden, Colorado. Unusual in its construction, it was at one time the largest cobblestone building in the United States.”
Wikipedia article Colorado National Guard Armory, CC BY-SA 4.0.
One of 83 National Register listings published here for Jefferson County · listed in 1978 · category: Building.
National Register reference number.78000860- 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
476 since 2003
Regional context, not property-specific
evidence. The
federal wildfire occurrence database
lists 476 fires within 5 miles of Colorado National Guard Armory
between 2003 and 2020, burning about 1,919 acres in total. 14 started naturally. 4 were 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
Missing data/not specified/undetermined
381
Smoking
25
Equipment and vehicle use
23
Natural
14
Recreation and ceremony
9
Fireworks
7
Arson/incendiarism
4
Misuse of fire by a minor
4
Railroad operations and maintenance
4
Debris and open burning
3
Power generation/transmission/distribution
1
Other causes
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
144 workings within 5 miles of Colorado National Guard Armory: 74 producers, 45 occurrences, 15 past producers, 6 unknowns.
74 still produce. What was taken out: Fire Clay (Refractory), Clay, Sand and Gravel, Construction, Uranium. 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
Golden, the town this property stands in, in 70 storm reports between 1994 and 2025: 53 hail, 7 flash flood, 6 lightning, 4 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.
Coal Creek went over its banks and washed out portions of CO72 at Twin Spruce. The highway was completely washed out between Plainview and Twin Spruce. Additional washouts occurred on side streets within Coal Creek Canyon. Many residents were ordered to remain in their homes (Shelter In Place) until rescue teams could reach them.
Flash flooding and debris was reportedly washed out a sections of CO72 at the base of Coal Creek Canyon. Road closures included: CO72 , from CO93 to Coal Creek Canyon; CO93, between CO72 and CO128; CO72, between CO93 and Indiana St.; U.S. 36, between Wadsworth Blvd and Flatirons; Interstate 70 west, from Floyd Hill to Hidden Valley due to rock slides. Natural Gas Lines in Coal Creek Canyon were also shut off.
Continuous heavy rainfall produced flash flooding. Additional road washouts occurred on side streets within Coal Creek Canyon. CO72 was completely washed out between Plainview and Twin Spruce.
Heavy rainfall caused flooding and flash flooding problems in north central Jefferson County. Officials were forced to briefly close State Highway 93, north of Golden, which was flooded by runoff and littered with debris. In Golden, flash floods left several backyards and basements full of standing water. At least one car was submerged in a garage. Radar estimated 1 to 1.5 inches of rain had fallen in the area in approximately 30 minutes.
Weather spotters reported dime-size hail fell at the intersection of Highways 287 and C470 in Jefferson County. Marble-size hail covered the ground near Golden (12 miles west of Denver), to a depth of one inch.
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
6 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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