Berryessa Snow Mountain National Monument
Berryessa Snow Mountain National Monument is a national monument of the United States comprising 344,476 acres (139,404 ha) of the California Coast Ranges in Napa, Yolo, Solano, Lake, Colusa, Glenn and Mendocino counties in northern California. Cache Creek Wilderness is located within the monument.
From Wikipedia, licensed CC BY-SA 4.0.
| Designation | National Monument |
| Managed by | Bureau of Land Management |
| State | California |
| Size | 421,132 acres |
| National Conservation Lands id | NLCS000318 |
| Center point | 39.13° N, 122.60° W |
| Night sky | About as dark as the ground gets (Black Marble reading 15) |
Boundary map
Boundary, simplified to about 0.005 degrees Federal campground
The outline is the agency boundary simplified for display, so small parcels and inholdings may not show. The agency page has the authoritative map.
Weather by month
Large units span more than one climate. The station stands in for the center point, and the outer parts of the boundary can be warmer or colder.
Where to camp
None of the 15 federal campgrounds within ten miles sit inside the boundary. Nearest first. Distances are from the campground point to the boundary edge, from the Campsite Atlas index.
Show 4 moreHide
3 more within ten miles are not listed here.
Trails
71 named Forest Service trails start or end within 14.5 miles of the center point, 130 miles in all. The 10 longest are listed here.
| Trail | Miles | Allowed uses |
|---|---|---|
| Copper Smelter ↗ | 9.3 | |
| North Trough ↗ | 8.8 | |
| Love Lady ↗ | 7 | |
| Hornet Nest Grove ↗ | 6.7 | |
| Fence Line ↗ | 6.5 | |
| South Trough ↗ | 6.2 | |
| Auk Auk/Trough ↗ | 6 | |
| Lady Bug ↗ | 5.5 | |
| Miner Ridge ↗ | 5.5 | |
| Sullivan ↗ | 5.1 |
Lengths and allowed uses come from the Forest Service trail layer by way of Trailhead Atlas. This trail list was copied from Trailhead Atlas on November 1, 2026 and is copied again on each weekly run. Trails in plain text have no page there yet. The radius is the one a circle of this unit’s acreage would have, measured from the center point, so a trail listed here can fall outside the boundary.
Fire nearby
- PrescribedAlder Springs Underburn Rx
37 mi from the center point
- PrescribedB15 White Ranch Rx
40 mi from the center point · 30 acres
- PrescribedHoward Forest Rx Fire
41 mi from the center point · 69 acres
Distance is to the reported incident point, not the fire edge, and is measured from the center of a boundary that may be many miles across. Check the agency page for closures.
Explore
Nearby on the other atlases
- 8.5 miElmshaven ↗National Historic Landmark
- 0.9 miRumsey Town Hall ↗Rumsey, CA
- 1.9 miMaxwell Creek Bridge on Hardin Road ↗Locoallomi, CA
- 2 miPleasants Ranch ↗Vacaville, CA
- 3.1 miNichelini Winery ↗St. Helena, CA
- 5.3 miCanon School ↗Brooks, CA
- 6.1 miMain Street Historic District-- Winters ↗Winters, CA
- 7.5 miLakeport Carnegie Library ↗Lakeport, CA
Landmarks are listed first, then by distance from the boundary.
Guidebooks for California
We earn a small commission if you buy through these links. It does not change what we list.
Titles come from Open Library's catalog, matched by subject heading or by title.
Reference
Questions people ask
How big is Berryessa Snow Mountain National Monument?
421,132 acres.
Source: How acreage is computed
Who manages Berryessa Snow Mountain National Monument?
The Bureau of Land Management.
Source: Bureau of Land Management
What state is Berryessa Snow Mountain National Monument in?
California.
Source: How states are assigned
Can I camp at Berryessa Snow Mountain National Monument?
Rules vary by unit. The BLM page has the current camping rules. The federal campgrounds within ten miles are listed under Where to camp.
Source: Where to camp
How do I get to Berryessa Snow Mountain National Monument?
A point inside the boundary is at 39.132° N, 122.602° W. Port Chicago Naval Magazine National Memorial is 28 miles away. The official page carries directions and the office address.
Source: Bureau of Land Management
Is there a fire near Berryessa Snow Mountain National Monument right now?
3 active incidents within 50 miles as of 2026-11-01, the nearest Alder Springs Underburn Rx at 37 miles. Distance is to the reported incident point, not the fire edge.
Source: Fire nearby
Which national parks are near Berryessa Snow Mountain National Monument?
Port Chicago Naval Magazine National Memorial (28 mi). Park Atlas has fees, hours and alerts for each.
Source: Nearby on the other atlases
Are there historic places near Berryessa Snow Mountain National Monument?
The National Register has 82 listings within 15 miles, including Elmshaven and Rumsey Town Hall.
Source: Register Atlas
Sources
- Boundary, name: the BLM National Conservation Lands layer.
- States and territories: computed by intersecting the boundary with Census state polygons and coarse outlines of the territories and outlying islands. A place is listed when it holds at least one percent of the area. A boundary that touches no outline is listed under the nearest one.
- Acreage: geodesic area of the published polygon. The agency’s official acreage can differ where the boundary includes water, easements or inholdings.
- Description: Berryessa Snow Mountain National Monument on Wikipedia, CC BY-SA 4.0. The article was accepted because its title contains this unit’s name.
- Campgrounds: the Campsite Atlas index of federal campgrounds, matched to this boundary at build time.
- Trails: the Trailhead Atlas open-data file of Forest Service trails, matched by trail endpoints falling inside a circle of this unit’s acreage around the center point.
- Night sky: NASA Black Marble (VIIRS, 2016 composite) sampled at zoom 6 around the center point.
- Weather, alerts, air quality, river flow and earthquakes load live in your browser from NWS, AirNow, USGS and iNaturalist when you open the page.