Rancho Bernardo, California
43 topographic sheets cover this place, the earliest surveyed in 1893 and the latest in 1996. It stands in the San Diego census division. It lies in ZIP code area 92128. It lies near Green Valley. The Survey maps it on the Escondido quadrangle.
Then and now
1893 to 1996The same ground, surveyed 103 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.


Compare 1893 against another survey:
Topographic sheets covering this place
16 surveys from 43 printed sheetsMatched 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.
- 1893 USGS Escondido quadrangle1:62500, 2 printings
- 1901 USGS Escondido quadrangle1:62500, 6 printings
- 1901 USGS San Luis Rey quadrangle1:125000, 8 printings
- 1904 USGS Southern California Sheet No. 2 quadrangle1:250000, 5 printings
- 1942 USGS Escondido quadrangle1:62500
- 1947 USGS Santa Ana quadrangle1:250000
- 1948 USGS Escondido quadrangle1:24000, 2 printings
- 1949 USGS Escondido quadrangle1:24000, 2 printings
- 1949 USGS Santa Ana quadrangle1:250000
- 1956 USGS Santa Ana quadrangle1:250000
- 1959 USGS Santa Ana quadrangle1:250000, 3 printings
- 1960 USGS Santa Ana quadrangle1:250000, 2 printings
- 1965 USGS Santa Ana quadrangle1:250000
- 1968 USGS Escondido quadrangle1:24000, 5 printings
- 1982 USGS Oceanside quadrangle1:100000, 2 printings
- 1996 USGS Escondido quadrangle1:24000
Fires near this place
146 since 1992Regional context, not property-specific evidence. The federal wildfire occurrence database lists 146 fires within 5 miles of Rancho Bernardo between 1992 and 2020, burning about 3,809 acres in total. 2 started naturally. 15 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 | 71 |
| Equipment and vehicle use | 28 |
| Arson/incendiarism | 15 |
| Debris and open burning | 11 |
| Misuse of fire by a minor | 8 |
| Smoking | 4 |
| Recreation and ceremony | 3 |
| Power generation/transmission/distribution | 2 |
| Other causes | 2 |
| Natural | 2 |
The most recent of them, most recent first, with the day each was reported and the service that recorded it.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 6 September 2004 | Misuse of fire by a minor | 65 acres | San Diego Unit | BANDY |
| 5 September 2005 | Missing data/not specified/undetermined | 160 acres | San Diego Fire-Rescue Department | SUNDEVIL |
| 30 September 2009 | Missing data/not specified/undetermined | under an acre | California Department of Forestry & Fire Protection | not named |
| 28 September 1993 | Arson/incendiarism | 705 acres | California Desert District | COACH |
| 26 September 2011 | Missing data/not specified/undetermined | 2.0 acres | San Diego Unit | not named |
| 24 September 1996 | Equipment and vehicle use | under an acre | San Diego Unit | RIVER |
| 22 September 2010 | Arson/incendiarism | under an acre | California Department of Forestry & Fire Protection | not named |
| 20 September 2014 | Missing data/not specified/undetermined | under an acre | San Diego Unit | CAMINO SANTA FE / FOUR G |
Settlements close enough to share some of these fires:
Mines and quarries near this place
10 of 21 shownRegional context, not property-specific evidence. The federal mineral resources record lists 21 workings within 5 miles of Rancho Bernardo: 9 past producers, 6 producers, 3 occurrences, 3 prospects. 6 still produce. What was taken out: Gold, Granite, Stone, Crushed/Broken, 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.
| Where | Site | Commodity | Status | Recorded |
|---|---|---|---|---|
| Black Mountain Group | Arsenic, Gold | Past Producer | ||
| Bly Stone Co | Stone | Producer | ||
| Four-Gee Deposits | Aluminum | Past Producer | ||
| Gravel Pit | Sand and Gravel, Construction | Past Producer | ||
| Lake Hodges Pit | Sand and Gravel, Construction | Past Producer | ||
| Unnamed Prospect | Aluminum | Occurrence | ||
| C. B. Grove Pit No. 2 | Stone, Crushed/Broken | Past Producer | ||
| Dg Pit | Stone, Crushed/Broken | Past Producer | ||
| Poway Pit | Stone, Crushed/Broken | Past Producer | ||
| Bly Stone Co. Quarry | Granite | Producer |
Storms near this place
6 since 2006Regional context, not property-specific evidence. The National Weather Service names Rancho Bernardo in 6 storm reports between 2006 and 2024: 3 flood, 1 funnel cloud, 1 thunderstorm wind, 1 debris flow. 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.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| April 2020 | Debris Flow | Rancho Bernardo | $2,000,000 | Mudslide under a home spilled onto Black Mountain Road in Rancho Penasquitos, closing part of the road and causing stress to owner's house and property. |
| February 2017 | Flood | Rancho Bernardo | $10,000 | A driver attempted and failed to cross a flooded roadway in a vehicle, resulting in water rescue. |
| April 2016 | Flood | Rancho Bernardo | $10,000 | The southbound onramp of Interstate 15 was flooded with 1 to 2 feet of stagnant water. A BMW stalled due to flooded waters in the right lane. |
| February 2024 | Flood | Rancho Bernardo | - | San Diego County Public Works reported that Campania Ave between Castello Circle and Camino San Thomas was closed due to flooding. |
| January 2010 | Thunderstorm Wind | Rancho Bernardo | - | The Mount Woodson mesonet measured a peak wind gust of 62 MPH at 1230 PST as a line of thunderstorms moved over the area. A weather spotter estimated wind gusts in excess of 60 MPH in San Diego Country Estates around 1230 PST. Two large trees were blown down and blocking the road near San Diego Country Estates. |
| March 2006 | Funnel Cloud | Rancho Bernardo | - | A funnel cloud was observed beneath the wall cloud of a low topped supercell. |
Nearest settlements
The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.
| Map | Place | Distance | Sheets |
|---|---|---|---|
| Green Valley | 1.1 miles | 43 | |
| Poway | 4.1 miles | 37 | |
| Sabre Springs | 4.8 miles | 37 | |
| Del Dios | 4.9 miles | 43 | |
| Rancho Penasquitos | 5.0 miles | 37 | |
| Rock Haven (historical) | 5.1 miles | 37 | |
| Poway Grove Park | 5.4 miles | 37 | |
| Poway Grove (historical) | 5.4 miles | 37 |
Provenance
This settlement is recorded in the Geographic Names Information System as feature 1656602. 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.















