From the record
One of 42 National Register listings published here for Mendocino County · listed in 2012 · category: Building.
Sources: the case file at the National Archives · the National Register database, National Park Service
Listed on the National Register of Historic Places in 2012. 7 historic topographic surveys show this location, the earliest from 1920.
One of 42 National Register listings published here for Mendocino County · listed in 2012 · category: Building.
Sources: the case file at the National Archives · the National Register database, National Park Service
Regional context, not property-specific evidence. The federal wildfire occurrence database lists 329 fires within 5 miles of Ukiah Main Post Office between 1992 and 2020, burning about 3,919 acres in total. 9 started naturally. 52 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 | 127 |
| Equipment and vehicle use | 58 |
| Debris and open burning | 54 |
| Arson/incendiarism | 52 |
| Misuse of fire by a minor | 12 |
| Natural | 9 |
| Power generation/transmission/distribution | 6 |
| Smoking | 5 |
| Recreation and ceremony | 4 |
| Firearms and explosives use | 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 1995 | Arson/incendiarism | 3.0 acres | Mendocino Unit | VICHY |
| 8 September 2003 | Equipment and vehicle use | 3.0 acres | Mendocino Unit | BURKE |
| 8 September 2003 | Equipment and vehicle use | 1.0 acres | Mendocino Unit | GUN |
| 8 September 1993 | Smoking | under an acre | Mendocino Unit | PARK |
| 7 September 2016 | Missing data/not specified/undetermined | under an acre | California Department of Forestry & Fire Protection | not named |
| 7 September 1999 | Equipment and vehicle use | under an acre | Mendocino Unit | ORR SPRINGS |
| 6 September 2020 | Power generation/transmission/distribution | under an acre | Mendocino Unit | AHUV - STHH 2 |
| 6 September 1998 | Missing data/not specified/undetermined | 1.0 acres | Mendocino Unit | LOW GAP |
Regional context, not property-specific evidence. The federal mineral resources record lists 12 workings within 5 miles of Ukiah Main Post Office: 5 occurrences, 4 producers, 3 unknowns. 4 still produce. What was taken out: Sand and Gravel, Construction, Gold, Chromium, Stone, Crushed/Broken. 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 |
|---|---|---|---|---|
| Calpella | Osmium, Iridium, Platinum, Gold | Occurrence | Stream Placer | |
| Empress | Mercury | Occurrence | ||
| Gibson | Stone, Dimension | Unknown | ||
| Krueger Quarry | Stone, Crushed/Broken | Producer | ||
| Moore | Chromium | Occurrence | Chromite | |
| Moore | Clay | Occurrence | ||
| Vichy Springs | Geothermal | Unknown | ||
| Van Allen | Gold | Occurrence | ||
| Van Allen | Gold | Unknown | ||
| Freitas Pit and Mill | Sand and Gravel, Construction | Producer |
Regional context, not property-specific evidence. The National Weather Service names Ukiah, the town this property stands in, in 3 storm reports between 2023 and 2025: 2 flood, 1 heavy rain. 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 |
|---|---|---|---|---|
| February 2025 | Heavy Rain | Ukiah | $400 | Large rocks have come to rest on the intersection of Orr springs road and North state street, 2 miles north of Ukiah. Lat. 39.18N, Long. -123.21W. |
| January 2024 | Flood | Ukiah | - | Road washing away near the intersection of Low Gap Road and Pine Ridge Road west of Ukiah. |
| January 2023 | Flood | Ukiah | - | Highways closed from Ukiah to Hopland due to flooding. |
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 |
|---|---|---|---|
![]() | Palace Hotel | 0.2 miles | 1979 |
![]() | Held-Poage House | 0.3 miles | 1988 |
![]() | Charles Hofman House | 0.3 miles | 1993 |
![]() | Sun House | 0.4 miles | 1981 |
| National Archives record | The nomination case file for reference 12000266 in Record Group 79. |
| Mendocino County | All 42 listed properties in this county. |