Listed on the National Register of Historic Places in 1993. 16 historic topographic surveys show this location, the earliest from 1897.
From the record
“The Hofer Ranch is a historic ranch and ranch headquarters compound located in Ontario, located in the Pomona Valley and San Bernardino County, in Southern California. It is within the Cucamonga Valley AVA Wine Appellation.”
Wikipedia article Hofer Ranch, CC BY-SA 4.0.
One of 98 National Register listings published here for San Bernardino County · listed in 1993 · category: District.
National Register reference number.93000596- 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
1897 to 1982
The ground this property stands on, surveyed
85 years apart. Drag the handle to wipe between them. Both sheets are
United States Geological Survey originals; neither has been altered.
18971982
Fires near this property
384 since 1992
Regional context, not property-specific
evidence. The
federal wildfire occurrence database
lists 384 fires within 5 miles of Hofer Ranch
between 1992 and 2020, burning about 3,433 acres in total. None started naturally. 24 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
220
Equipment and vehicle use
59
Smoking
40
Arson/incendiarism
24
Misuse of fire by a minor
18
Debris and open burning
17
Railroad operations and maintenance
6
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
1 working within 5 miles of Hofer Ranch: 1 producer.
All of them still produce. What was taken out: Sand and Gravel, Construction. 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
Ontario, the town this property stands in, in 7 storm reports between 2004 and 2025: 2 flash flood, 2 flood, 2 heavy rain, 1 lightning.
The reports record 3 deaths and 1 injury. 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.
Ontario Fire department reported 6 person in the swiftwater channel in John Galvin park where the channel begins near I-10. Rainfall rates of 0.50 to 0.75 inches per hour had occurred from 7 am to 9 am in Ontario and Rancho Cucamonga. 3 persons were rescued. 3 more person were later found drowned in a retaining pond which was filled 15 to 20 feet high with storm runoff water. The bodies were not found until several days later due the water being too deep and low visibility. Multiple agencies were involved in the week long recovery efforts. The channel runs south past Ontario airport to where it reached the storage collection ponds on East Philadelphia Street. Search and rescue in Cucamonga Channel reported by CalOES and Ontario Fire Department. As many as 10 people experiencing homelessness were swept away as a surge of water occurred following 2 hours of heavy rain. Five people were immediately rescued, one person immediately reported deceased, with two additional bodies recovered (one of November 14, the other on November 16).
Flooding was reported across the Inland Empire on November as widespread rain fell. The Department of Highways reported flooding at SR-60 West and the Phillips Ranch Road offramp in the morning, with an additional report of two vehicles stuck in flood waters after attempting to drive through a closed off ramp onto Euclid.
United States Geological Survey topographic
sheets whose coverage includes this point. Matched by taking the coordinate the National Park Service records for this property, then
testing that coordinate against the published boundary of every sheet.
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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