Listed on the National Register of Historic Places in 1966. 16 historic topographic surveys show this location, the earliest from 1900.
One of 616 National Register listings published here for Los Angeles County · listed in 1966 · category: Building.
Sources: the case file at the National Archives · the National Register database, National Park Service · the Wikipedia article
The ground this property stands on, surveyed 95 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.
Regional context, not property-specific evidence. The federal wildfire occurrence database lists 208 fires within 5 miles of Romulo Pico Adobe between 1992 and 2020, burning about 9,318 acres in total. 1 started naturally. 21 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 | 108 |
| Equipment and vehicle use | 41 |
| Arson/incendiarism | 21 |
| Smoking | 9 |
| Fireworks | 6 |
| Debris and open burning | 6 |
| Power generation/transmission/distribution | 6 |
| Recreation and ceremony | 6 |
| Misuse of fire by a minor | 3 |
| Natural | 1 |
| Other causes | 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 |
|---|---|---|---|---|
| 9 September 1999 | Missing data/not specified/undetermined | 3.0 acres | Angeles National Forest | PAXTON |
| 6 September 1993 | Missing data/not specified/undetermined | 2.0 acres | Angeles National Forest | not named |
| 30 September 1999 | Debris and open burning | under an acre | Angeles National Forest | TRASH |
| 30 September 1995 | Missing data/not specified/undetermined | under an acre | Angeles National Forest | PAXTON |
| 28 September 2005 | Missing data/not specified/undetermined | under an acre | Angeles National Forest | POLK |
| 25 September 2015 | Equipment and vehicle use | under an acre | Angeles National Forest | PAXTON |
| 24 September 2006 | Missing data/not specified/undetermined | under an acre | Angeles National Forest | VANNUYS |
| 23 September 2016 | Arson/incendiarism | under an acre | Angeles National Forest | FOOTHILL |
Regional context, not property-specific evidence. The federal mineral resources record lists 16 workings within 5 miles of Romulo Pico Adobe: 15 past producers, 1 prospect. None of them still produces. What was taken out: Sand and Gravel, Construction, Granite, Stone, Crushed/Broken, Limestone, General. 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 |
|---|---|---|---|---|
| Pacoima Hill Quarry | Granite, Stone, Crushed/Broken | Past Producer | ||
| Wilson Deposit | Limestone, General | Prospect | ||
| Big Tujunga Plant | Sand and Gravel, Construction | Past Producer | ||
| Borges Rock | Sand and Gravel, Construction | Past Producer | ||
| Boulevard Pit | Sand and Gravel, Construction | Past Producer | ||
| Cooperative Building Materials Co. | Sand and Gravel, Construction | Past Producer | ||
| Granite Materials Co. - Wick St. | Sand and Gravel, Construction | Past Producer | ||
| Material Dealers Dist. Co. Pit | Sand and Gravel, Construction | Past Producer | ||
| Pacific Rock Co. | Sand and Gravel, Construction | Past Producer | ||
| Pacific Rock Company | Sand and Gravel, Construction | Past Producer | Sand and Gravel |
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.
| Photograph | Property | Distance | Listed |
|---|---|---|---|
 | Mission San Fernando Rey de Convento Building | 0.5 miles | 1988 |
 | Lopez Adobe | 1.7 miles | 1971 |
 | Van Nuys Branch | 5.9 miles | 1987 |
| Great Wall of Los Angeles, The | 6.9 miles | 2017 | |
| Great Wall of Los Angeles, The | 7.3 miles | 2017 | |
 | Rancho El Encino | 7.5 miles | 1971 |
| National Archives record | The nomination case file for reference 66000211 in Record Group 79. |
| Wikipedia article | Community-written account of this property, licensed CC BY-SA. |
| Los Angeles County | All 616 listed properties in this county. |
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