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A gray 4x4 Sprinter with a roof rack on a two-track through a wildflower meadow, cloud sitting on the mountains behind.

Forest Service campground

Mill Valley Campground

Forest Service campground in Mendocino National Forest, Colusa County, California. 4,080 feet. 22.6 miles from Lakeport.

Managed by
Forest Service Mendocino National Forest
Elevation
4,080 ft USGS elevation model, at the mapped point
Reservations
First come, first served Claim a site when you arrive. Recreation.gov lists it for Scan and Pay, so the fee can be paid from its app at the campground
County
Colusa County

Overview

This location is available on a first-come, first-served basis only. Visitors are required to physically arrive at the campground to purchase and claim a site.

Once on-site, you are able to pay for your campsite(s) by scanning a QR code using the Recreation.gov mobile app, and the Scan and Pay feature.

In order to utilize Scan & Pay on site, you will need to first download the free Recreation.gov mobile app https://www.recreation.gov/mobile-app prior to your arrival as some remote areas have limited or no cellular service.

Recreation

The Forest Service in cooperation with the State of California Off-Highway Vehicle Fund, (Green Sticker), has developed roads, trails, and facilities for further enjoyment of the OHV user. Remember, these are your facilities and OHV funds are being used to develop and maintain them.

Forest Service roads open to Off-Highway Vehicles are considered public roads. All motorcycle riders on public lands in the State of California must wear a safety helmet meeting the standards adopted by the US Department of Transportation.

State law requires all vehicles, including motorcycles to be registered. You must have a current Green or Red Sticker, or Highway License. Highway licensed vehicles must meet all standards for operating on a public highway and be operated in accordance with California state law.

Your vehicle must be equipped with a properly installed Forest Service approved spark arrester in good working condition.

For your safety and the safety of others, Off-Highway Vehicles must never be operated in a manner likely to endanger any person or property. Driving at excessive speeds, careless and reckless driving, racing and "wheelies" are not only prohibited, but also dangerous on forest roads and camping areas.

State and Federal law prohibit operating any vehicle while under the influence of alcohol or drugs. This applies equally to the operation on Off-Highway vehicles, including those statutes prohibiting drinking while driving (CVC 23220), and drinking in a motor vehicle (CVC 23221).

Motorcycles and ATVs must meet state sound requirement of 96 dba or lower.

Unlicensed juveniles operating motorcycles and ATVs must be under the supervision of a licensed adult.

The Stonyford Work Center (530) 963-3128 is available to provide Trail Conditions and closure information for the Grindstone District area.

Stonyford Area Motor Vehicle Opportunity Guide

Facilities

Campground has 15 sites equipped with picnic tables and fire rings. Accomodates up tp 24 foot trailers.

OHV trail leading in and out of campground.

Trash service only avaliable during summer months.

Natural Features

General vegetation is mixed coniferous forest with chaparral surroundings.

Nearby Attractions

Letts Lake and Big Springs Picnic Area are one mile south of the campground.

The description, directions and fees are the Forest Service’s own words, from its record on Recreation.gov.

What people do here

  • camping
  • off highway vehicle trails

The land around Mill Valley Campground

The ringed pin is this campground; the others are its nearest neighbours. Switch on forest roads or BLM routes to see the way in.

Map layers

Layers
Base map
Legend

Federal land, by managing agency

  • Bureau of Land Management (BLM)
  • US Forest Service (USFS)
  • National Park Service (NPS)
  • US Fish and Wildlife (USFW)
  • Bureau of Reclamation (USBR)
  • Department Of Defense (DOD)
  • Bureau of Indian Affairs (BIA)
  • Other Federal
  • State
  • Local
  • Alaska Native Lands (Patented or Interim Conveyed)
  • Alaska Native Allotment

Federal campgrounds, by agency

  • Forest Service
  • Bureau of Land Management
  • National Park Service
  • Army Corps of Engineers
  • Reclamation, Fish and Wildlife and others

State and local land (USGS PAD-US)

  • State land
  • County and city land
  • Regional agency or district
  • Land trust or conservancy

Gaps with no tint inside public land are private parcels, often old mining claims and homesteads. They are not open to the public.

Dashed clay lines on the base map are unpaved tracks from OpenStreetMap. They show what exists on the ground, not what is legal to drive.

Select any point to see who manages the land.

Boundaries are approximate and land status changes. This map is a planning aid, not a survey or a statement of access. Confirm routes, closures and camping rules with the managing office.

Nearest campgrounds

Camping near

Source: Recreation Information Database (Recreation.gov), record updated March 11, 2026. Elevation from the USGS 3D Elevation Program. Seasons, fees, water and fire rules change; the managing office has the final word.

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