Boulder, Colorado

• Open map evidence
• Research guide
• Boulder County

Buildings and businesses the archive holds for this place. Each opens its own page, with the source record it came from.

On the National Register 12 of 26 shown

• Colorado ChautauquaNational Historic Landmark · listed 1978
• Arnett-Fullen Houselisted 2009
• Hannah Barker Houselisted 2019
• Boulder Creek Bridgelisted 2003
• Carnegie Librarylisted 1979
• Chautauqua Auditoriumlisted 1974
• Columbia Cemeterylisted 1997
• Downtown Boulder Historic Districtlisted 1980
• First Baptist Church of Boulderlisted 2004
• Fox Mine Officelisted 1996
• Fox Stone Barnlisted 1996
• Highland Schoollisted 1978

Every listing in Boulder County

Boulder grew from 97,385 to 108,250 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.

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.

• 1902 USGS Boulder quadrangle1:62500
• 1904 USGS Boulder quadrangle1:62500, 6 printings
• 1954 USGS Greeley quadrangle1:250000, 3 printings
• 1957 USGS Boulder quadrangle1:24000, 3 printings
• 1957 USGS Boulder quadrangle1:62500, 3 printings
• 1957 USGS Greeley quadrangle1:250000
• 1958 USGS Greeley quadrangle1:250000
• 1961 USGS Greeley quadrangle1:250000
• 1964 USGS Greeley quadrangle1:250000
• 1965 USGS Greeley quadrangle1:250000
• 1966 USGS Boulder quadrangle1:24000, 5 printings
• 1984 USGS Estes Park quadrangle1:100000, 3 printings

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 892 fires within 5 miles of Boulder between 1992 and 2020, burning about 1,237 acres in total. 26 started naturally. 18 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.

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Settlements close enough to share some of these fires:

• Ara
• Seven Hills
• Boulder Junction
• El Vado
• Orodell
• Silver Spruce

Every fire recorded in Boulder County

Regional context, not property-specific evidence. The federal mineral resources record lists 98 workings within 5 miles of Boulder: 52 past producers, 29 occurrences, 16 producers, 1 unknown. 16 still produce. What was taken out: Gold, Silver, Sand and Gravel, Construction, Tungsten. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Every working recorded in Boulder County

Regional context, not property-specific evidence. The National Weather Service names Boulder in 98 storm reports between 1993 and 2023: 64 hail, 15 thunderstorm wind, 13 lightning, 2 flash flood. The reports record 6 injuries. 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.

Every storm recorded in Boulder County

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

Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.

This settlement is recorded in the Geographic Names Information System as feature 178680. 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.

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.