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Photograph of Jensen Alvarado Ranch
Photograph by Jensen Alvarado (Life time: 1870), Public domain. Via Wikimedia Commons.

Cornelius Jensen Ranch

Listed on the National Register of Historic Places in 1979. 16 historic topographic surveys show this location, the earliest from 1901.

From the record

One of 90 National Register listings published here for Riverside County · listed in 1979 · category: Building.

Sources: the case file at the National Archives · the National Register database, National Park Service · the Wikipedia article

The listing

  • Listed as. Jensen, Cornelius, Ranch - the National Register files a house under its owner's surname.
  • Address. 4350 Riverview Dr, Rubidoux, 92509
  • When was it listed? September 1979
  • Category. building
  • Census division. Jurupa
  • National Register reference number. 79000519 - 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.

Then and now

1901 to 1983

The ground this property stands on, surveyed 82 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet covering Cornelius Jensen Ranch, surveyed 1983
Topographic sheet covering Cornelius Jensen Ranch, surveyed 1901

Fires near this property

1,807 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 1,807 fires within 5 miles of Cornelius Jensen Ranch between 1992 and 2020, burning about 11,981 acres in total. 1 started naturally. 202 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/undetermined928
Equipment and vehicle use310
Arson/incendiarism202
Smoking142
Misuse of fire by a minor139
Debris and open burning47
Recreation and ceremony21
Power generation/transmission/distribution14
Railroad operations and maintenance3
Natural1

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

DateCause SizeReported by Name on the report
9 September 2018Missing data/not specified/undeterminedunder an acreCalifornia Department of Forestry & Fire ProtectionCLAY
9 September 2018Missing data/not specified/undeterminedunder an acreCalifornia Department of Forestry & Fire ProtectionSKYLOFT DR JRPV
8 September 2020Missing data/not specified/undeterminedunder an acreRiverside UnitEL PALOMINO DR JRPV
8 September 2011Missing data/not specified/undetermined1.0 acresRiverside UnitTYROLITE ST / MISSION BL
8 September 2002Equipment and vehicle useunder an acreRiverside UnitLOCAL
8 September 2000Equipment and vehicle useunder an acreRiverside UnitLOCAL FIRE
8 September 1995Smokingunder an acreRiverside UnitSTATE 1497
8 September 1994Missing data/not specified/undeterminedunder an acreRiverside UnitLOCAL 15020

Every fire recorded in Riverside County

Mines and quarries near this property

10 of 38 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 38 workings within 5 miles of Cornelius Jensen Ranch: 32 past producers, 5 producers, 1 occurrence. 5 still produce. What was taken out: Stone, Crushed/Broken, Sand and Gravel, Construction, Limestone, General, Silica. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Where SiteCommodity StatusRecorded
Crestmore QuarryCement Rock, Stone, Crushed/BrokenPast Producer
New City QuarryLimestone, General, DolomitePast Producer
Ormand QuarryGraniteProducerSurface
Riverside Cement CompanyLimestone, General, ClayPast Producer
Rubidoux Hill QuarryStone, DimensionPast Producer
Stone & Alexander QuarryFeldspar, SilicaPast Producer
Unnamed Stone DepositFeldspar, SilicaPast Producer
Glen Avon Limestone DepositMarble, DimensionPast Producer
Glen Avon QuarryMarble, DimensionProducerMetamorphic
Jensen's QuarryMarble, DimensionPast Producer

Every working recorded in Riverside County

Storms near this property

1 since 1996

Regional context, not property-specific evidence. The National Weather Service names Rubidoux, the town this property stands in, in 1 storm report in 1996: 1 wildfire. 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.

WhenEvent Place namedHarm What the report says
April 1996WildfireRubidoux-no account filed

Every storm recorded in Riverside County

Maps showing this location

16 surveys

United States Geological Survey topographic sheets whose coverage includes this point. Matched by taking the middle of the area the National Park Service maps for this listing, then testing that coordinate against the published boundary of every sheet.

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.

Photograph PropertyDistance Listed
Evergreen Cemetery2.0 miles2023
Chinatown2.2 miles1990
Masonic Temple2.6 miles1980
M. H. Simon's Undertaking Chapel2.6 miles1980
Mission Inn2.7 miles1971
Federal Post Office2.7 miles1978

Sources for this property

National Archives recordThe nomination case file for reference 79000519 in Record Group 79.
Wikipedia articleCommunity-written account of this property, licensed CC BY-SA.
Riverside CountyAll 90 listed properties in this county.

Provenance

  • 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.