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Adams County, Colorado

141 topographic sheets cover 70 settlements here, and 18 properties are on the National Register of Historic Places.

Research this county

From the record

18 National Register listings published here.

Sources: the National Register database, National Park Service

Colorado within the United States
Adams County within Colorado

What the record shows

  • 1,629 topographic sheet readings cover the county's settlements.
  • 18 properties here are on the National Register of Historic Places: 12 buildings, 5 districts and 1 structure.
  • 1 of the 18 listings was added during the 1970s.
  • The Geographic Names Information System records 71 populated places in this county; 70 are covered by at least one topographic sheet.

Places on the National Register

18

Every property in this county listed on the National Register of Historic Places, with the year it was listed and the federal nomination document.

Photograph PropertyType ListedReference
Adams County Courthousebuilding200606000916
Bowles Housebuilding198888002308
Brighton High Schoolbuilding199897001665
Bromley Farm-Koizuma Hishinuma Farmdistrict200707000811
Colorado Sanitary Canning Factorybuilding201616000073
Deza Estatesdistrict2023100009565
Eastlake Farmers Co-Operative Elevator Companystructure201010000259
Engelbrecht Farmdistrict201414000170
Granville Fuller Housebuilding201212000242
William J. Gregory Housebuilding199696000166
Harris Park Schoolbuilding199090000868
Metzger Farmdistrict201313000077
Riverside Cemeterydistrict199494001253
M.J. Lavina Robidoux Housebuilding201111000655
Thede Farmhousebuilding199898000024
Union High Schoolbuilding200099001665
Westminster Universitybuilding197979000572
Blanche A. Wilson Housebuilding199696001278

Wildfire, 1992 to 2020

2,221 fires

Every wildfire the federal occurrence database records inside this county: 2,221 of them, burning about 10,166 acres. 42 started naturally and 62 were recorded as arson. Each settlement page carries the fires within five miles of it.

Reported cause Fires
Missing data/not specified/undetermined1782
Smoking88
Equipment and vehicle use68
Arson/incendiarism62
Debris and open burning56
Recreation and ceremony52
Natural42
Fireworks40
Misuse of fire by a minor16
Power generation/transmission/distribution9
Railroad operations and maintenance6

The five largest, by the area the report gives. One of them was set deliberately.

DateCause SizeReported by Name on the report
19 August 2020Missing data/not specified/undetermined4,200 acresAdams County OfficeSHAMROCK
19 August 2020Missing data/not specified/undetermined2,000 acresAdams County OfficeDETER-WINTERS
22 August 2011Missing data/not specified/undetermined1,000 acresColorado State Forest Service-State HeadquartersBYERS
7 July 1995Equipment and vehicle use443 acresRocky Mountain Arsenal National Wildlife RefugeSEC23-95
22 July 2020Missing data/not specified/undetermined400 acresAdams County OfficeCALHOUN
6 March 2017Missing data/not specified/undetermined290 acresAurora Fire DepartmentUNKNOWN
23 March 2018Arson/incendiarism270 acresGreater Brighton Fire Protection DistrictUNKNOWN
8 August 2016Debris and open burning134 acresRocky Mountain Arsenal National Wildlife RefugeRATTLESNAKE HILL

Every settlement page carries the fires within five miles of it - see the settlement index below.

Storms, 1953 to 2025

60 of 862 shown

The NOAA Storm Events Database holds 862 reports for this county, causing 3 deaths, 62 injuries and about $469,895,270 in recorded property damage. Each settlement page carries the reports that name it.

Kind of event Reports
Hail489
Tornado192
Thunderstorm Wind135
Flash Flood21
Lightning19
Flood5
Dust Devil1

The most serious of them, by death, then injury, then recorded damage. The accounts are quoted exactly as the forecast office filed them.

WhenEvent Place namedHarm What the report says
June 2006LightningWestminster1 killedA man on a motorcycle was struck by lightning and killed. The motorcyclist was struck on U.S. Highway 36 between Church Ranch Blvd. and Sheridan Blvd. After the man was struck, he crashed into the center median. The lightning left a crater in the highway that was approximately 18 inches long, 8 inches wide and 4 inches deep.
May 2001LightningWestminster1 killedA 19-yr old man was killed by lightning as he was walking along the shoulder of U.S. Highway 36 during a thunderstorm.
August 2000Flash FloodWest Central Portion1 killedno account filed
June 1981Tornado (F2)not stated42 hurt, $25,000,000no account filed
May 1994Thunderstorm WindCommerce City6 hurtno account filed
June 2001HailWatkins5 hurt, $49,000,000Large hail, damaging winds and very heavy rain pummeled a mobile home park in Watkins. In the park, 52 mobile homes, 14 recreational vehicles, 3 homes and a commercial building were damaged. Siding was riddled with holes and windows were broken. Vehicles sustained extensive body damage and the car windows were shattered. A handful of people were treated for minor cuts and bruises. Strong winds also flipped a tractor trailer along Interstate 70 near Watkins. At least 30 private planes at Front Range Airport were totalled. The radome protecting the National Weather Service doppler radar, which was tracking the storm, also sustained damage. The storm caused power outages which affected about 1,200 residents. Excluding the damage done at Denver International Airport, damage estimates totalled $49 million, making it the costliest storm in the last 3 years, and 10th costliest since 1984.
July 2011HailWatkins2 hurt, $164,800,000no account filed
September 1989Thunderstorm Windnot stated2 hurtno account filed
August 1977Tornado (F1)not stated1 hurt, $250,000no account filed
August 1997LightningAurora1 hurt, $1,000A man received minor injuries when he was struck by lightning while talking on the telephone.
May 2010LightningCommerce City1 hurtA child was struck in the leg by lightning while watching television.
May 2002Thunderstorm WindStrasburg1 hurtA very strong dry microburst swept a woman up into swirl of dirt and carried her approximately 150 feet. The woman was in an open field, corraling a yearling horse, when the incident occurred. Fortunately, she received only minor injuries.
September 2011LightningBrighton1 hurtno account filed
May 1996HailThornton$120,000,000no account filed
May 2010HailBarr Lake$70,000,000no account filed
June 1999HailAurora$35,000,000no account filed
September 2013FloodBarr Lake$2,140,000Heavy rain, ranging from 4 to 10 inches through the entire storm event, caused widespread flooding along the entire drainage system of the South Platte River. Flooding and flash flooding inpacted Riverdale Golf Course and the Regional Park. The gulch that ran through those two areas caused flooding and erosion in several places including the newly created reservoirs between the Regional Park and 120th Avenue.|The Regional Park shop was also flooded as well as the Riverdale Golf Shop. All combined, the countys estimated damage at the Park alone, not including the golf course, was about $637,000. Parts of Colorado Boulevard between CO7 and 168th Avenue were closed due to significant damage to the road surface and foundation.|Additional damage also occurred at retention ponds, parks and trails. The cost to roads and bridges was approximately $400,000 for repairs. Approximately 755 households were impacted by flooding.
May 2023FloodNorthglenn$1,000,000Dozens of roads in Adams County were hit by flooding and were closed due to damage. Authorities believe the damage and impact to the county was severe. The following streets were closed due to flooding: 26th Ave. between Yulle Road and Wolf Creek Road, 64th Ave. between Piggott Road and Wolf Creek Road, Piggott Road from 80th Ave. to 88th Ave., Old Victory Road from US 36 to SH 79, 72nd Ave. from Bradbury-Krebs Road to Xmore Road, Road 15 from Bradbury-Krebs Road to Xmore Road, 26th Ave. from Strasburg Road to Comanche Drive, 26th Ave. from Piggott Road to Yulle Road, 48th Ave. from Strasburg Road to Piggott Road, 112th Ave. from Headlight Road to Nordbye Road, 112th Ave. from Behrens Road to Horrogate Road, 72nd Ave. from Converse Road to SH 79, 80th Ave. from Schumaker Road to SH 79, Cameron Drive from Guy Court to OBrien, Converse Road from 128th Ave. to 144th Ave., Converse Road, from 88th Ave. to 112th Ave., East 112th Ave. from SH 79 to Converse Road, 104th Ave. at Manilla Road and at Tumbleweed Court, 64th Ave. from Converse Road to Schumaker Road, Converse Road from 88th Ave. to 64th Ave., 72nd Ave. at Converse Road and SH 79, 80th Ave. from SH 79 to Schumaker Road, 112th Ave. from Himalaya Road to Picadilly. All Adams County trails were also closed, which included the South Platte River Trail.|.
August 1999Flash FloodWest Portion$500,000no account filed
May 1990Tornado (F1)not stated$250,000no account filed
June 1988Tornado (F2)not stated$250,000no account filed
May 1978Tornado (F2)not stated$250,000no account filed
May 1976Tornado (F2)not stated$250,000no account filed
June 1967Tornado (F0)not stated$250,000no account filed
July 1996Tornado (F2)Strasburg$220,000no account filed
July 2001LightningThornton$200,000Lightning struck the roof of a home. Most of the damage was confined to the attic.
July 2018Tornado (EF1)Strasburg$100,000A tornado touched down a tossed a cattle feeder one quarter of a mile. In addition, some farm equipment was knocked over and the windows of a home were blown out.
July 1997LightningWatkins$75,000Lightning sparked a fire causing extensive damage to a home.
May 2000Thunderstorm WindWatkins$70,000A strong microburst wind to 92 mph (80 kts) flipped one small plane on its back and blew at DC-3 loose from its moorings and into a grassy field at Front Range Airport.
June 2023Flash FloodDenver Front Range A$50,000Highway 36 was closed due to flooding between Watkins and Schumaker Road. At least 6 vehicles were stranded with reports of roads washed out and active water rescues in progress.
August 2010LightningWestminster$30,000Lightning struck a residence and sparked a fire. The fire migrated in the space between the first and second floor.
August 2009LightningBennett$25,000Lightning ignited two oil tanks near Bennett. It took 18,000 gallons of water and foam to put out the fires.
June 2009Tornado (EF0)Northglenn$25,000A small tornado touched and caused minor damage. Several trees were downed in an open field. The tornado also damaged a metal fence and minor roof damage to a nearby residence.
May 1959Tornado (F2)not stated$25,000no account filed
August 2010LightningWestminster$20,000Lightning sparked a fire at a townhome. The fire caused damage to the exterior roof and severe damage to the trusses in the attic.
July 1997FloodWestminster$20,000Heavy rain caused flooding to occur in the Rancho Pecos apartment building. Several residents had to be evacuated from their apartments.
August 2008LightningBrighton$20,000no account filed
May 2015Tornado (EF1)Strasburg$15,000A tornado touched down briefly and extensively damaged a storage shed.
July 2001LightningThornton$15,000Lightning struck another home in Thornton. Most of the damage was confined to the attic.
May 2014Flash FloodBennett$10,000A line of stationary thunderstorms produced flash flooding near Bennett. Over one foot of water was observed rushing over the junction of US 36 and Kiowa-Bennett Road.
March 2016Dust DevilThornton$5,000A gustnado knocked down a power pole and destroyed a small storage shed.
May 2010LightningCommerce City$5,000A lightning strike killed a buffalo at the Rocky Mountain Arsenal Refuge.
September 1993Thunderstorm WindBrighton$5,000no account filed
June 1988Tornado (F1)not stated$2,500no account filed
July 1987Tornado (F2)not stated$2,500no account filed
May 1984Tornado (F1)not stated$2,500no account filed
June 1982Tornado (F3)not stated$2,500no account filed
May 1967Tornado (F1)not stated$2,500no account filed
July 1954Tornado (F1)not stated$2,500no account filed
July 2025Thunderstorm WindWestminster$1,000Report via social media. Measured a 50 mph gust using a handheld anemometer. A few trees down along with numerous 1-3 inch diameter branches.
July 1994Tornado (F0)Byers to$500Spotters reported a tornado 10 miles east northeast of Byers (31 miles east of Denver). The tornado traveled in open country to 6 miles east of Byers before dissipating. The tornado downed several power poles northeast of Byers. Spotters estimated the tornado to be 0.5 mile wide at its biggest point, and could have caused up to F4 type damage.
May 1994Thunderstorm WindWestminster$500no account filed
September 1993Thunderstorm WindDenver$500no account filed
September 1993HailShamrock$500no account filed
September 1993Thunderstorm WindShamrock$500no account filed
July 1955Tornadonot stated$250no account filed
April 1954Tornadonot stated$250no account filed
June 1983Tornado (F1)not stated$30no account filed
June 1982Tornado (F1)not stated$30no account filed
June 1982Tornado (F1)not stated$30no account filed

Mines and quarries

157 recorded

The Survey's mineral resources record lists 157 workings inside this county. 33 still produce and 124 are closed or unrecorded. Each settlement page carries the workings within five miles of it.

Commodity Workings
Sand and Gravel, Construction145
Clay10
Gold4
Gold, Silver1
Gold, Silver, Sand and Gravel, Construction1
Sand and Gravel, Construction, Silver1

The least common of them first, because a county's hundredth gravel pit says nothing its first ten did not.

Where SiteCommodity StatusRecorded
Adams North PitSand and Gravel, Construction, Gold, SilverPast Producer1956
UnknownGold, Silver, Sand and Gravel, ConstructionProducerPlacer
UnknownGold, Sand and Gravel, Construction, SilverOccurrence
Cooley Gravel Co. PitsSand and Gravel, Construction, GoldPast Producer1951, 1964
Gordon PitSand and Gravel, Construction, GoldPast ProducerGold, Sand and Gravel
Thornton PitSand and Gravel, Construction, GoldProducer1980
UnknownClayOccurrence
UnknownClayOccurrence
UnknownClayOccurrence
UnknownClayOccurrence
UnknownClayOccurrence
UnknownClayProducer
UnknownClayProducer
UnknownClayProducer
UnknownClayProducer
UnknownClayProducer
Adams Aggregate Inc PitSand and Gravel, ConstructionUnknown
Adams Aggregate Inc PitSand and Gravel, ConstructionUnknown
Adams County PitSand and Gravel, ConstructionPast Producer
Adams County PitSand and Gravel, ConstructionPast Producer
Adams County PitSand and Gravel, ConstructionUnknown
Albert Frei & Sons Sand and Gr PitSand and Gravel, ConstructionUnknown
Asphalt Paving Co PitSand and Gravel, ConstructionPast Producer
Asphalt Paving Co PitSand and Gravel, ConstructionPast Producer
BakerSand and Gravel, ConstructionPast Producer
Brannan Sand and Gravel Co PitSand and Gravel, ConstructionUnknown
Brannan Sand and Gravel Co PitSand and Gravel, ConstructionPast Producer
Brannan Sand and Gravel Co PitSand and Gravel, ConstructionPast Producer
Brannan Sand and Gravel Co PitSand and Gravel, ConstructionPast Producer
Brannan Sand and Gravel Co PitSand and Gravel, ConstructionPast Producer
Brannan Sand and Gravel Co PitSand and Gravel, ConstructionPast Producer
Brannan Sand and Gravel Co PitSand and Gravel, ConstructionPast Producer
Brannan Sand and Gravel Co PitSand and Gravel, ConstructionPast Producer
Brannan Sand and Gravel Co PitSand and Gravel, ConstructionPast Producer
Brannan Sand and Gravel Co PitSand and Gravel, ConstructionPast Producer
Brannan Sand and Gravel PitSand and Gravel, ConstructionPast Producer
Brannan Sand and Gravel PitSand and Gravel, ConstructionUnknown
C & H Construction Co PitSand and Gravel, ConstructionPast Producer
Colorado Consolidated Rock PitSand and Gravel, ConstructionProducer
Colorado Consolidated Rock PitSand and Gravel, ConstructionProducer
Colorado Highway Dept PitSand and Gravel, ConstructionPast Producer
Colorado-Wyoming Improvement Co PiSand and Gravel, ConstructionUnknown
Colorado-Wyoming Improvement Co PiSand and Gravel, ConstructionUnknown
Colorado-Wyoming Improvement Co PiSand and Gravel, ConstructionUnknown
Colorado-Wyoming Improvment Co PitSand and Gravel, ConstructionPast Producer
Consolidated PlantSand and Gravel, ConstructionProducer
Consolidated Rock PitSand and Gravel, ConstructionProducer
Cooley Gravel Co PitSand and Gravel, ConstructionPast Producer
Cooley Gravel Co PitSand and Gravel, ConstructionPast Producer
Cooley Gravel Co PitSand and Gravel, ConstructionPast Producer
Cooley Gravel Co PitSand and Gravel, ConstructionUnknown
Cooley Gravel Co PitSand and Gravel, ConstructionUnknown
Cooley Gravel Co PitSand and Gravel, ConstructionPast Producer
Department of Wildlife PitSand and Gravel, ConstructionPast Producer
Fast Construction Co PitSand and Gravel, ConstructionUnknown
Fast Construction PitSand and Gravel, ConstructionUnknown
Gravel PitSand and Gravel, ConstructionProducer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionUnknown
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionProducer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionProducer
Gravel PitSand and Gravel, ConstructionProducer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionProducer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionUnknown
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionUnknown
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionProducer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionUnknown
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionProducer
Gravel PitSand and Gravel, ConstructionProducer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionUnknown
Gravel PitSand and Gravel, ConstructionProducer
Gravel PitSand and Gravel, ConstructionProducer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionProducer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionProducer
Gravel PitSand and Gravel, ConstructionProducer
Gravel PitSand and Gravel, ConstructionPast Producer
Gravel PitSand and Gravel, ConstructionPast Producer
H W Siddle Inc PitSand and Gravel, ConstructionUnknown
Henderson S&G PitSand and Gravel, ConstructionPast Producer
Houston Construction PitSand and Gravel, ConstructionUnknown
Industrial Development Investrs PiSand and Gravel, ConstructionUnknown
Jones Fine Sand Co PitSand and Gravel, ConstructionProducer
Kilgore-Atchinson ISand and Gravel, ConstructionUnknown
Kilgore-Atchinson IiSand and Gravel, ConstructionUnknown
Mobile Pre-Mix Concrete Inc PitSand and Gravel, ConstructionUnknown
Mobile Pre-Mix Concrete Inc PitSand and Gravel, ConstructionUnknown
Mobile Pre-Mix Concrete Inc PitSand and Gravel, ConstructionUnknown
Northwestern Engineering Co PitSand and Gravel, ConstructionPast Producer
ParkdaleSand and Gravel, ConstructionPast Producer
Peter Kiewit Sons PitSand and Gravel, ConstructionPast Producer
Pink Greenhouses PitSand and Gravel, ConstructionUnknown
Platte Valley Sand & Gravel PitSand and Gravel, ConstructionProducer
SterlingSand and Gravel, ConstructionPast Producer
Suburban Sand and Gravel Co PitSand and Gravel, ConstructionUnknown
Suburban Sand and Gravel Co PitSand and Gravel, ConstructionUnknown
Suburban Sand and Gravel Co PitSand and Gravel, ConstructionUnknown
Superior Sand and Gravel Co PitSand and Gravel, ConstructionProducer
Tee Pee Construction Co PitSand and Gravel, ConstructionProducer
UnknownSand and Gravel, ConstructionProducerGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionOccurrenceGravel
UnknownSand and Gravel, ConstructionProducerGravel
Unnamed Gravel PitSand and Gravel, ConstructionOccurrenceGravel
Western Paving Co & Houston Con PiSand and Gravel, ConstructionPast Producer
Western Paving Co PitSand and Gravel, ConstructionPast Producer
Western Paving Co PitSand and Gravel, ConstructionPast Producer
Western Paving Co PitSand and Gravel, ConstructionPast Producer
Western Paving Co PitSand and Gravel, ConstructionPast Producer
Western Paving Co PitSand and Gravel, ConstructionPast Producer
Western Paving Co PitSand and Gravel, ConstructionPast Producer
Western Paving Co PitSand and Gravel, ConstructionProducer
Western Paving Co PitSand and Gravel, ConstructionUnknown
Western Paving Co PitSand and Gravel, ConstructionPast Producer
Western Paving Co PitSand and Gravel, ConstructionProducer
Western Paving Co PitSand and Gravel, ConstructionPast Producer
Western Paving Co PitSand and Gravel, ConstructionProducer
Western Paving Co PitSand and Gravel, ConstructionPast Producer
Western Paving PitSand and Gravel, ConstructionPast Producer

Every populated place in the county

71

Named settlements recorded in the Geographic Names Information System, each with the topographic sheets covering it. Villages, hamlets and abandoned places alike. Each is shown with the nearest named watercourse or landform and the survey quadrangle it falls on.

Provenance

  • Topographic sheets. USGS Historical Topographic Map Collection, county index, measured from the bulk metadata.
  • Fire insurance maps. Library of Congress Sanborn collection, faceted to this county.
  • Photographs. Each place queried individually against the Library of Congress Prints and Photographs search.
  • 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.