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Los Alamos County, New Mexico

37 topographic sheets cover 3 settlements here, and 8 properties are on the National Register of Historic Places.

Research this county

From the record

8 National Register listings published here, 2 of them National Historic Landmarks.

Sources: the National Register database, National Park Service

New Mexico within the United States
Los Alamos County within New Mexico

What the record shows

  • 62 topographic sheet readings cover the county's settlements.
  • 8 properties here are on the National Register of Historic Places: 5 structures, 2 districts and 1 building.
  • The Geographic Names Information System records 3 populated places in this county; 3 are covered by at least one topographic sheet.

Photographs

2 photographs,

Taken for the Office of War Information and the Farm Security Administration, who photographed the country between 1935 and 1944. Works of United States government photographers, with no known restriction on use. Each opens its catalogue record.

Fuller Lodge, Central & Twentieth Streets, Los Alamos, Los Alamos County, NM
Fuller Lodge, Central & Twentieth Streets, Los Alamos, Los Alamos County, NM
Photographer not recorded. Library of Congress
Romero Cabin, Pajarito Road, Los Alamos, Los Alamos County, NM
Romero Cabin, Pajarito Road, Los Alamos, Los Alamos County, NM
Photographer not recorded. Library of Congress

Places on the National Register

8

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
Bandelier CCC Historic Districtdistrict198787001452
Bayo Roadstructure200303001141
Bayo Roadstructure200303001141
Grant Roadstructure200403001409
Grant Roadstructure200403001409
Los Alamos Scientific Laboratorydistrict196666000893
Lujan Roadstructure200504001478
United States Post Office-Los Alamos, New Mexicobuilding201515000493

The county from the air

26 shown

Flown by the U.S. Geological Survey between 1937 and 1989, the Aerial Photo Single Frames collection is the definitive mid-century view of the land: fields, roads and rivers as the camera saw them. The Survey holds 385 frames inside the rectangle that bounds this county; the 26 frames below were taken over the county itself, chosen across the decades of flights (at most four a year from that rectangle), so one flight cannot crowd out the rest. The full set is free to browse and download at EarthExplorer under the dataset Aerial Photo Single Frames.

U.S. Geological Survey aerial photograph, 1954-05-27, scale 1:54000
1954-05-27, scale 1:54000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1954-05-27, scale 1:54000
1954-05-27, scale 1:54000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1954-05-27, scale 1:54000
1954-05-27, scale 1:54000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1973-06-26, scale 1:31680
1973-06-26, scale 1:31680. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1973-06-26, scale 1:31680
1973-06-26, scale 1:31680. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1973-06-26, scale 1:31680
1973-06-26, scale 1:31680. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1975-06-26, scale 1:76000
1975-06-26, scale 1:76000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1975-06-26, scale 1:76000
1975-06-26, scale 1:76000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1975-06-26, scale 1:76000
1975-06-26, scale 1:76000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1975-06-26, scale 1:76000
1975-06-26, scale 1:76000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1976-10-01, scale 1:29000
1976-10-01, scale 1:29000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1976-10-01, scale 1:29000
1976-10-01, scale 1:29000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1976-10-01, scale 1:29000
1976-10-01, scale 1:29000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1976-10-01, scale 1:29000
1976-10-01, scale 1:29000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1979-02-09, scale 1:31105
1979-02-09, scale 1:31105. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1979-02-09, scale 1:31105
1979-02-09, scale 1:31105. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1979-02-09, scale 1:31105
1979-02-09, scale 1:31105. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1979-02-09, scale 1:31105
1979-02-09, scale 1:31105. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1987-10-01, scale 1:33200
1987-10-01, scale 1:33200. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1987-10-01, scale 1:33200
1987-10-01, scale 1:33200. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1987-10-01, scale 1:33200
1987-10-01, scale 1:33200. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1987-10-01, scale 1:33200
1987-10-01, scale 1:33200. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1990-06-01, scale 1:29000
1990-06-01, scale 1:29000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1990-06-01, scale 1:29000
1990-06-01, scale 1:29000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1990-06-01, scale 1:29000
1990-06-01, scale 1:29000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1990-06-01, scale 1:29000
1990-06-01, scale 1:29000. U.S. Geological Survey aerial photograph.

Weather records

23 stations, 14 gages

The thermometers that kept this county's weather, and the gages that measured the flow of its streams, as the federal records hold them. The extremes below are measured values from those records, not estimates.

The 1950 census, district by district

13 districts

Who lived here in 1950, one enumeration district at a time, as the Census Bureau described each district. Each row opens its official National Archives result, with Population Schedules and ED Maps available there.

  • 15-1Los Alamos County: Los Alamos, unincorporated: Los Alamos, unincorporated That part Bounded by Pueblo Canyon, Old residential area boundary; Old residential area boundary; East Rd., Canyon Rd., Unnamed Rd., 10th, Opal; 16th, 18th, 18th extended
  • 15-2Los Alamos, unincorporated - That part Bounded by Pueblo Canyon; 18th extended, 18th, Quince, Peach, 23rd; Central Ave., Canyon Rd.; 35th, 35th extended
  • 15-3Los Alamos, unincorporated - That part Bounded by Old residential area boundary, Pueblo Canyon; Pueblo Canyon, 35th extended, 35th; Canyon Rd.; Diamond Dr.
  • 15-4Los Alamos, unincorporated - That part Bounded by Pueblo Canyon, Old residential area boundary, Pueblo Canyon, Old residential area boundary; Diamond Dr., Sandia Dr., 48th, Trinity Dr., 43rd, 43rd extended; Los Alamos Canyon; Old residential area boundary
  • 15-5Los Alamos, unincorporated - That part Bounded by Sandia Dr.; Diamond Dr., West Rd.; Old residential area boundary, Los Alamos Canyon; 43rd extended, 43rd, Trinity Dr., 48th
  • 15-6Los Alamos, unincorporated - That part Bounded by Canyon Rd., Central Ave.; 26th, Trinity Dr., 29th, Patrol Rd.; Los Alamos Canyon; West Rd.
  • 15-7Los Alamos, unincorporated - That part Bounded by Trinity Dr., 20th, Central Ave.; 13th, 13th extended, 13th, 13th extended; Los Alamos Canyon; Patrol Rd., 29th
  • 15-8Los Alamos, unincorporated - That part Bounded by Quince, 18th, 16th, Opal; 15th, Central Ave., 20th; Trinity Dr.; 26th, Central Ave., 23rd, Peach
  • 15-9Los Alamos, unincorporated - That part Bounded by Opal, 10th, Unnamed Rd., Canyon Rd.; East Rd., Central Ave.; 15th
  • 15-10Los Alamos, unincorporated - That part Bounded by Central Ave., East Rd.; Old residential area boundary; Los Alamos Canyon; 13th extended, 13th, 13th extended, 13th
  • 15-11Los Alamos County - That part outside the unincorporated place of Los Alamos. (See separate map for boundaries of Los Alamos)
  • 15-12Los Alamos, unincorporated - That part Bounded by Los Alamos residential area boundary; Diamond Dr., Old residential area boundary, Pueblo Canyon, Old residential area boundary, Pueblo Canyon, Old residential area boundary, Los Alamos Canyon, Patrol Rd., Los Alamos Canyon, Old residential area boundary, Los Alamos residential area boundary; Los Alamos residential area boundary; Los Alamos residential area boundary
  • 15-13Los Alamos, unincorporated - That part Bounded by Diamond Dr., Los Alamos residential area boundary; Old residential area boundary; Old residential area boundary, Pueblo Canyon, Old residential area boundary; Diamond Dr.

Wildfire, 1992 to 2020

197 fires

Every wildfire the federal occurrence database records inside this county: 197 of them, burning about 383 acres. 153 started naturally and 9 were recorded as arson. Each settlement page carries the fires within five miles of it.

Reported cause Fires
Natural153
Recreation and ceremony18
Missing data/not specified/undetermined10
Arson/incendiarism9
Debris and open burning3
Power generation/transmission/distribution2
Misuse of fire by a minor2

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

DateCause SizeReported by Name on the report
10 May 2000Debris and open burning294 acresNorthern Pueblos AgencyC. GRANDE
26 July 1997Natural19 acresBandelier National MonumentBURNT MESA
29 March 2019Power generation/transmission/distribution8.0 acresBernalillo District19-60710355N
3 May 2000Arson/incendiarism7.0 acresSanta Fe National ForestGUAJE
20 June 2004Missing data/not specified/undetermined4.9 acresNew Mexico State Forestry DivisionLOS ALAMOS
29 June 1994Natural4.0 acresSanta Fe National Forestnot named
18 July 2020Natural3.5 acresSanta Fe National ForestQUEMAZON
24 July 2018Natural3.0 acresSanta Fe National ForestAMERICAN

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

Storms, 1961 to 2025

58 of 58 shown

The NOAA Storm Events Database holds 58 reports for this county, causing no deaths, no injuries and about $1,509,800,000 in recorded property damage. Each settlement page carries the reports that name it.

Kind of event Reports
Hail37
Flash Flood13
Thunderstorm Wind4
Wildfire1
Dust Devil1
Funnel Cloud1
Lightning1

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
May 2000WildfireLos Alamos$1,500,000,000no account filed
August 2011Flash FloodLos Alamos$6,000,000After 1 to 1.5 inches of rain fell on the northern portion of the Las Conchas burn scar, flash flooding was reported in Santa Clara Canyon. Four people that were working in the canyon had to be rescued by helicopter.
July 2001Flash FloodLos Alamos$3,500,000no account filed
August 2001Flash FloodLos Alamos$100,000Brief heavy rain and strong runoff caused more damage to North Road in Los Alamos where recent drainage upgrades and repairs were washed away. North Road continues to suffer damage with such rapid and high runoff from the burned areas of Pueblo Canyon which have not recovered from last years Cerro Grande fire storm.
July 2012Flash FloodLos Alamos$50,000Mud, logs and large rocks washed onto State Road 501 (West Jemez Rd.) near State Road 4, as well as in Los Alamos Canyon and along Camp May road. Heavy equipment and road graders were needed to clear the debris.
October 2012Hail(Lam)Los Alamos Airport$50,000KOB-TV reported from the Los Alamos Monitor Newspaper that multiple aircraft at the Los Alamos Airport were damaged. A thin metal surface on numerous planes was dinged and dented due to large hail. The Airport Manager was reported as saying up to 18 planes were damaged.
May 2013Dust DevilLos Alamos$30,000Roof of gymnasium torn off and dropped onto library and playground area at Barranca Mesa Elementary School.
July 2009Hail(Lam)Los Alamos Airport$25,000The hail dented automobiles and cracked wind shields.
July 2009Hail(Lam)Los Alamos Airport$25,000The hail caused extensive damage to cars.
October 2012HailLos Alamos$10,000Newspaper report with images of significant hail damage to a mobile home in Los Alamos. Home owners reported hail was ping pong ball sized. Location is estimated from article giving home address. Time is estimated, based on radar imagery and other hail reports in the area. All images attached to this event are courtesy of the Los Alamos Daily Post newspaper.
August 2008Flash FloodWhite Rock$10,000Boulders and several rock slides poured onto route 4 between White Rock and the Bandelier National Monument due to heavy rain.
June 2025Hail(Lam)Los Alamos Airport-Two different reports received of quarter size hail on the north side of Los Alamos.
July 2024Hail(Lam)Los Alamos Airport-A trained spotter in Los Alamos reported nickel size hail from a thunderstorm.
June 2024Thunderstorm WindWhite Rock-A Los Alamos National Laboratory mesonet 5 miles south southwest of Los Alamos recorded a wind gust of 59 mph from a severe thunderstorm.
June 2024Thunderstorm Wind(Lam)Los Alamos Airport-A Los Alamos National Laboratory mesonet station 3 miles east southeast of Los Alamos recorded a wind gust of 67 mph from a severe thunderstorm.
May 2024HailLos Alamos-Los Alamos Sky Cam and pictures from local residents showed significant accumulations of pea to penny size hail in downtown Los Alamos from a thunderstorm. Hail accumulation depth looked to be around 2 to 3 inches based on tire track marks on the road.
May 2020HailLos Alamos-Hail up to the size of nickels reported in Los Alamos.
June 2017HailLos Alamos-Hail up to the size of nickels in Los Alamos.
June 2017HailLos Alamos-Hail up to the size of half dollars in Los Alamos.
June 2017HailLos Alamos-Hail up to the size of nickels in Los Alamos.
June 2017HailLos Alamos-Hail up to the size of quarters in Los Alamos.
August 2016LightningLos Alamos-Lightning splintered a tree at the Los Alamos Golf Course near 16 Los Alamos High School Golf Team members and four coaches. The strike occurred at around 4 pm, about 300 feet away from where the team was practicing. Several of the students reported feeling a strong static electricity sensation flow through their bodies. Fortunately, no injuries occurred.
October 2015HailLos Alamos-Penny to nickel size hail covered the ground.
July 2013Flash FloodLos Alamos-Power outages as well as flooding in the basement at Los Alamos National Labs were reported. An isolated strong cell formed over the area and stayed generally stationary for 2 hours. Rainfall amounts over 1.5 were recorded at sites across LANL.
August 2013Funnel CloudWhite Rock-A funnel cloud developed just to the southwest of White Rock. A photo taken by Karl Maness showed a well developed funnel as viewed from the LANL Emergency Operations Center.
May 2012HailLos Alamos-Quarter size hail reported in Los Alamos.
May 2012HailLos Alamos-The emergency manager reported dime to penny size hail.
October 2012HailLos Alamos-Quarter size hail reported at the Los Alamos airport.
October 2012HailLos Alamos-Hail piled up to a depth of four inches. County officials had to utilize snow plows to clear hail piles from roadways.
July 2012Flash FloodLos Alamos-The intersection of State Road 4 and State Road 501 (West Jemez Rd.) was closed due to flash flooding.
August 2011Flash FloodLos Alamos-Water and debris flowed over Highway 501 after approximately one inch of rain fell over central portions of the Las Conchas burn scar. The highway was temporarily closed.
August 2011Flash FloodLos Alamos-Both Highway 4 and 501 were closed in the Jemez Mountains due to flooding. Heavy rains on the Las Conchas burn scar caused significant runoff and debris flow over the roadways. At least a 50 yard stretch of debris several inches deep was noted along State Highway 501. Both roads had to be cleared by the Highway Department before traffic was allowed to pass.
July 2009HailLos Alamos-The security team at Los Alamos National Laboratory reported penny to nickel sized hail.
July 2009Hail(Lam)Los Alamos Airport-Spotters and law enforcement reported golfball size hail in Los Alamos for at least 5 minutes.
July 2005HailLos Alamos-A brief and intense hail storm with stones ranging form one half inch to one inch in diameter covered city streets and parking lots to a depth of 4 to 8 inches.
June 2000Flash FloodLos Alamos-Heavy ash and debris swept off the Cerro Grande Burn area into Water and Pajarito Canyons during heavy rain of 1 inch just west of Los Alamos.
August 2000Flash FloodLos Alamos-Heavy storm water runoff flooded Guaje and Garcia Canyons below the Cerro Grande Burn area during a burst of 1 inch rainfall.
August 2024Hail(Lam)Los Alamos Airport-no account filed
October 2015HailLos Alamos-no account filed
July 2009Hail(Lam)Los Alamos Airport-no account filed
July 2009Hail(Lam)Los Alamos Airport-no account filed
May 2008HailLos Alamos-no account filed
May 2008Hail(Lam)Los Alamos Airport-no account filed
June 2006HailLos Alamos-no account filed
June 2006HailLos Alamos-no account filed
June 2000Flash FloodLos Alamos-no account filed
October 2000HailLos Alamos-no account filed
July 2000Flash FloodLos Alamos-no account filed
July 1990Hailnot stated-no account filed
July 1990Hailnot stated-no account filed
July 1990Thunderstorm Windnot stated-no account filed
July 1989Hailnot stated-no account filed
July 1989Hailnot stated-no account filed
May 1989Hailnot stated-no account filed
December 1977Thunderstorm Windnot stated-no account filed
September 1968Hailnot stated-no account filed
June 1965Hailnot stated-no account filed
July 1961Hailnot stated-no account filed

Mines and quarries

1 recorded

The Survey's mineral resources record lists 1 working inside this county. It is closed or unrecorded. Each settlement page carries the workings within five miles of it.

Commodity Workings
Sand and Gravel, Construction1

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

Where SiteCommodity StatusRecorded
Materials Pit 57-69-SSand and Gravel, ConstructionUnknown

Every populated place in the county

3

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.

Everything this county holds

The complete index, with nothing left out. Each of these is a separate record with its own page: a federal survey report, or the case file that argued a property on to the National Register. Both are public domain and reproduced word for word.

Surveyed structures

2 structures

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.