St. Helena Historic Commercial District

Listed on the National Register of Historic Places in 1998. 10 historic topographic surveys show this location, the earliest from 1942.

From the record

One of 88 National Register listings published here for Napa County · listed in 1998 · category: District.

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 34 buildingss, 1 object as contributing to the listing.
Address. Along Main St., between Adams and Spring Sts., St. Helena, 94574
When was it listed? January 1998
Category. district
Census division. St. Helena
National Register reference number. 97001661 - 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

231 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 231 fires within 5 miles of St. Helena Historic Commercial District between 1992 and 2020, burning about 68,245 acres in total. 3 started naturally. 13 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	92
Equipment and vehicle use	69
Debris and open burning	34
Arson/incendiarism	13
Power generation/transmission/distribution	9
Smoking	8
Recreation and ceremony	3
Natural	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
8 September 2014	Equipment and vehicle use	under an acre	Sonoma-Lake Napa Unit	SPRING
8 September 2004	Equipment and vehicle use	under an acre	Sonoma-Lake Napa Unit	WEST
6 September 2007	Equipment and vehicle use	1.0 acres	Sonoma-Lake Napa Unit	SPRING WHITE 2
5 September 2003	Missing data/not specified/undetermined	4.0 acres	Sonoma-Lake Napa Unit	SMOKEY OAK
28 September 2007	Smoking	under an acre	Sonoma-Lake Napa Unit	LAS POSADAS RD ANGWIN 22
28 September 1998	Smoking	under an acre	Sonoma-Lake Napa Unit	WILSON
28 September 1993	Arson/incendiarism	under an acre	Sonoma-Lake Napa Unit	WHITEHALL
27 September 2020	Equipment and vehicle use	67,484 acres	Sonoma-Lake Napa Unit	GLASS

Every fire recorded in Napa County

Mines and quarries near this property

10 of 33 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 33 workings within 5 miles of St. Helena Historic Commercial District: 14 occurrences, 7 prospects, 6 producers, 4 past producers. 6 still produce. What was taken out: Mercury, Sand and Gravel, Construction, Manganese, Perlite. 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
Glass Mountain Deposit	Stone, Crushed/Broken	Prospect
Napa Valley Stone	Stone, Crushed/Broken	Producer
Stirling	Iron	Occurrence	Hematite
Sullinger Claim	Chromium	Occurrence	Chromite
Sullinger Claim	Chromium	Prospect
Unnamed Location	Iron	Unknown
Annadel Farm	Perlite	Producer
Glass Mountain Deposit	Stone	Occurrence	Obsidian
S. Lenz and Son Basalt Quarry and Plant.	Stone	Occurrence
S. Lnz. and Sn Bslt Qrry and Plnt	Stone	Prospect

Every working recorded in Napa County

Maps showing this location

10 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.

1942 USGS St. Helena quadrangle1:62500
1945 USGS St. Helena quadrangle1:62500 - 2 printings
1947 USGS Santa Rosa quadrangle1:250000
1949 USGS Santa Rosa quadrangle1:250000 - 2 printings
1958 USGS Santa Rosa quadrangle1:250000 - 3 printings
1960 USGS St. Helena quadrangle1:62500 - 2 printings
1960 USGS St. Helena quadrangle1:24000 - 6 printings
1962 USGS Santa Rosa quadrangle1:250000
1964 USGS Santa Rosa quadrangle1:250000
1972 USGS Healdsburg quadrangle1:100000 - 2 printings

Listed places nearby

6 within 8 miles

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.

Property	Distance	Listed
Taylor, Duckworth and Company Foundry Building	under 500 feet	1982
William Tell Saloon and Hotel	under 500 feet	1982
St. Helena Catholic Church	under 500 feet	1978
St. Helena Public Library	under 500 feet	1979
Special Internal Revenue Bonded Warehouse, First District, No. 13	0.1 miles	1995
John Ramos Sherry House-Depot Saloon	0.2 miles	2007

Sources for this property

National Archives record	The nomination case file for reference 97001661 in Record Group 79.
Napa County	All 88 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.