San Juan Hot Springs, California
42 topographic sheets cover this place, the earliest surveyed in 1901 and the latest in 1997. It stands in the Mission Viejo census division. It lies near Hot Spring Canyon. The Survey maps it on the Canada Gobernadora quadrangle.
Then and now
1901 to 1997The same ground, surveyed 96 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.


Compare 1901 against another survey:
On record in San Juan Hot Springs
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 within a mile 1 record
The National Register names another town for these. They stand within one mile of this settlement's coordinate.
Greystone Villa-Cabin 18listed 2002 · 0.3 miles away
Topographic sheets covering this place
16 surveys from 42 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.
- 1901 USGS Southern California Sheet No. 1 quadrangle1:250000, 6 printings
- 1902 USGS Corona quadrangle1:125000, 7 printings
- 1904 USGS Southern California Sheet No. 1 quadrangle1:250000, 2 printings
- 1942 USGS Santiago Peak quadrangle1:62500, 3 printings
- 1947 USGS Santa Ana quadrangle1:250000
- 1948 USGS Canada Gobernadora quadrangle1:24000, 2 printings
- 1949 USGS Canada Gobernadora 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 Canada Gobernadora quadrangle1:24000, 8 printings
- 1974 USGS Canada Gobernadora quadrangle1:24000
- 1983 USGS Santa Ana quadrangle1:100000
- 1997 USGS Canada Gobernadora quadrangle1:24000
Fires near this place
108 since 1992Regional context, not property-specific evidence. The federal wildfire occurrence database lists 108 fires within 5 miles of San Juan Hot Springs between 1992 and 2020, burning about 2,243 acres in total. 4 started naturally. 11 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 |
|---|---|
| Equipment and vehicle use | 42 |
| Missing data/not specified/undetermined | 29 |
| Recreation and ceremony | 18 |
| Arson/incendiarism | 11 |
| Natural | 4 |
| Power generation/transmission/distribution | 2 |
| Debris and open burning | 1 |
| Fireworks | 1 |
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 |
|---|---|---|---|---|
| 4 September 2009 | Missing data/not specified/undetermined | 30 acres | Cleveland National Forest | ORTEGA_3 |
| 4 September 2001 | Equipment and vehicle use | under an acre | Cleveland National Forest | LUCAS |
| 30 September 2014 | Equipment and vehicle use | under an acre | Cleveland National Forest | CAL TRANS |
| 30 September 1996 | Missing data/not specified/undetermined | under an acre | Cleveland National Forest | CARRILLO |
| 28 September 2000 | Equipment and vehicle use | under an acre | Cleveland National Forest | VERDUGO |
| 27 September 2006 | Equipment and vehicle use | 1.0 acres | Cleveland National Forest | FALLS |
| 27 September 1993 | Equipment and vehicle use | under an acre | Riverside Unit | STATE-1518 |
| 25 September 2009 | Equipment and vehicle use | under an acre | Cleveland National Forest | SAN |
Settlements close enough to share some of these fires:
Mines and quarries near this place
10 of 12 shownRegional context, not property-specific evidence. The federal mineral resources record lists 12 workings within 5 miles of San Juan Hot Springs: 4 prospects, 4 past producers, 4 occurrences. None of them still produces. What was taken out: Gold, Uranium, Thorium, Clay. 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 |
|---|---|---|---|---|
| Blue Goose | Gold, Silver | Past Producer | ||
| Joker and Catherine Prospect | Gold, Copper, Zinc | Prospect | ||
| Lucas Canyon Quarry | Stone, Crushed/Broken, Granite | Past Producer | ||
| Bell Canyon Prospect | Clay | Occurrence | ||
| Crow Canyon Pit | Clay | Past Producer | ||
| Prospect | Clay | Prospect | ||
| San Juan Canyon Prospect | Uranium, Thorium | Prospect | ||
| Unnamed Claims | Uranium, Thorium | Occurrence | ||
| Unnamed Prospect | Gold | Prospect | ||
| Unnamed Uranium Claims | Uranium, Thorium | Occurrence |
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 |
|---|---|---|---|
| Trabuco Highlands | 3.4 miles | 42 | |
| Dove Canyon | 4.1 miles | 37 | |
| Coto De Caza | 4.2 miles | 42 | |
| Robinson Ranch | 5.4 miles | 37 | |
| Rancho Santa Margarita | 6.0 miles | 37 | |
| Las Flores | 6.2 miles | 37 | |
| Trabuco Canyon | 6.5 miles | 37 | |
| Ladera Ranch | 6.8 miles | 37 |
Elsewhere
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.
| Wikipedia article on San Juan Hot Springs | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q122558908 | The structured record the population and elevation above come from. Public domain (CC0). |
Provenance
This settlement is recorded in the Geographic Names Information System as feature 1661384. 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.















