Round Valley Flour Mills

Listed on the National Register of Historic Places in 1980. 6 historic topographic surveys show this location, the earliest from 1920.

From the record

One of 42 National Register listings published here for Mendocino County · listed in 1980 · category: Building.

Sources: the case file at the National Archives · the National Register database, National Park Service

The listing

What is counted as historic. The nomination lists 1 building, 1 site as contributing to the listing.
Address. Main and Greely Sts., Covelo, 95428
When was it listed? November 1980
Category. building
Census division. Covelo
National Register reference number. 80000820 - 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.

Fires near this property

581 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 581 fires within 5 miles of Round Valley Flour Mills between 1992 and 2020, burning about 1,704 acres in total. 11 started naturally. 169 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
Arson/incendiarism	169
Debris and open burning	165
Missing data/not specified/undetermined	88
Equipment and vehicle use	64
Other causes	46
Misuse of fire by a minor	15
Natural	11
Recreation and ceremony	8
Fireworks	7
Power generation/transmission/distribution	5
Smoking	3

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 2000	Equipment and vehicle use	1.0 acres	Mendocino Unit	CHARLIE
8 September 2020	Missing data/not specified/undetermined	1.0 acres	Mendocino Unit	COVELO FIREHOUSE COVELO
8 September 2017	Missing data/not specified/undetermined	under an acre	California Department of Forestry & Fire Protection	REFUSE
8 September 2016	Missing data/not specified/undetermined	3.1 acres	California Department of Forestry & Fire Protection	LOGAN
7 September 2001	Equipment and vehicle use	3.0 acres	Mendocino Unit	SILVER CREEK
7 September 1997	Misuse of fire by a minor	under an acre	Central California Agency	JOAQ. FLD.
6 September 2011	Arson/incendiarism	1.0 acres	Round Valley Indian Tribes	TABOR #2
6 September 2004	Arson/incendiarism	under an acre	Mendocino Unit	AGENCY

Every fire recorded in Mendocino County

Mines and quarries near this property

6 within 5 miles

Regional context, not property-specific evidence. The federal mineral resources record lists 6 workings within 5 miles of Round Valley Flour Mills: 3 producers, 1 occurrence, 1 past producer, 1 unknown. 3 still produce. What was taken out: Manganese, 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.

Site	Commodity	Status	Recorded
Alderson Bar	Sand and Gravel, Construction	Producer
Mill Creek Bar	Sand and Gravel, Construction	Producer
Nowlin	Manganese	Producer	Rhodochrosite
Nowlin Mine	Manganese	Past Producer	1918
Von Konsky	Manganese	Occurrence
Von Konsky	Manganese	Unknown	1960

Every working recorded in Mendocino County

Storms near this property

1 since 2003

Regional context, not property-specific evidence. The National Weather Service names Covelo, the town this property stands in, in 1 storm report in 2003: 1 wildfire. 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
September 2003	Wildfire	Covelo	-	Covelo Complex

Every storm recorded in Mendocino County

Maps showing this location

6 surveys

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.

1920 USGS Covelo quadrangle1:62500
1952 USGS Spyrock quadrangle1:62500 - 4 printings
1957 USGS Ukiah quadrangle1:250000 - 3 printings
1960 USGS Ukiah quadrangle1:250000 - 2 printings
1967 USGS Covelo West quadrangle1:24000 - 4 printings
1981 USGS Covelo quadrangle1:100000 - 2 printings

Sources for this property

National Archives record	The nomination case file for reference 80000820 in Record Group 79.
Mendocino County	All 42 listed properties in this county.

Provenance

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.