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Dune weather summary: Aden Hills Off-Highway Vehicle Area, 93°, 7 mph. Alkali Lake OHV Area, 95°, 8 mph. Amargosa Big Dune, 95°, 9 mph. Aurora Open OHV Area, 84°, 23 mph, active alert: Flood Watch. Bangs Canyon OHV Trails, 88°, 8 mph. Barnwell Mountain Recreational Area, 95°, 6 mph, active alert: Heat Advisory. Blue Creek OHV Area, 91°, 11 mph. Boulders OHV Staging Area, 98°, 3 mph. Buttercup Valley, 101°, 9 mph, heat caution: HIGH HEAT - HYDRATE. Cameo Cliffs/Hook and OHV Ladder Trail System, 82°, 5 mph. Chappie/Shasta Off-Highway Vehicle Recreation Area, 70°, 0 mph. Cinder Hills OHV Area, 82°, --. Copper Basin Dunes OHV Area, 86°, 17 mph. Coral Pink Sand Dunes, 61°, 7 mph, active alert: Flood Watch. Crescent Sand Dunes, 75°, 21 mph. Cross Bar Ranch Off-Road Park, 102°, 10 mph, active alert: Heat Advisory. Crossroads OHV Area, 89°, 17 mph. Dove Springs OHV Area, 67°, 1 mph. Dumont Dunes, 81°, 0 mph. Dunes Off-Highway Vehicle Area, 84°, 6 mph. El Mirage OHV Area, 68°, 8 mph. Escondido Draw Recreational Area, 91°, 14 mph. Fort Sage Off-Highway Vehicle Area, 71°, 22 mph, active alert: Lake Wind Advisory. Fossil Creek OHV Trail, 70°, 7 mph. Gemini Bridges, 84°, 0 mph. Glamis / Imperial Sand Dunes, 96°, 12 mph. Glenwood Open OHV Area, 84°, 23 mph, active alert: Flood Watch. Gordon's Well, 101°, 9 mph, heat caution: HIGH HEAT - HYDRATE. Grand Valley Open OHV Area, 88°, 8 mph. Greater Sand Dunes SRMA, 79°, 6 mph. Hackberry Lake Off-Highway Vehicle Use Area, 95°, 8 mph. Hayfield Draw OHV Area, 93°, 3 mph. Haystack Mountain Off-Highway Vehicle Area, 81°, 11 mph. Head Canyon OHV Recreation Area, 84°, 6 mph. Hog Canyon OHV Trail System, 61°, 7 mph, active alert: Flood Watch. Hot Well Dunes Recreation Area, 91°, 4 mph. Hungry Valley SVRA, 58°, 11 mph. Jawbone Canyon OHV Area, 59°, 1 mph. Johnson Valley OHV Area, 69°, 4 mph. Killpecker Sand Dunes Open Play Area, 79°, 6 mph. Knolls Off-Highway Vehicle Special Recreation Management Area (SRMA), 86°, 15 mph. Little Sahara Recreation Area, 79°, 23 mph. Little Sahara State Park, 99°, 10 mph. McCullough Peaks OHV Area, 79°, 11 mph. Mescalero Sands North Dune Off-Highway Vehicle Area, 81°, 11 mph. Millican Valley OHV Trail System, 59°, 0 mph. Moon Rocks OHV Area, 69°, 11 mph, active alert: Lake Wind Advisory. Nellis Dunes OHV Area, 82°, 16 mph. North Sand Hills OHV Area, 73°, 7 mph. Northwest OHV Park, 98°, 7 mph, active alert: Heat Advisory. Oceano Dunes / Pismo Beach, 74°, 7 mph, active alert: Beach Hazards Statement. Ocotillo Wells SVRA, 87°, 4 mph. Pipestone OHV Area, 61°, 8 mph, active alert: Red Flag Warning. Poison Spider / Gold Bar, 87°, 6 mph. Rabbit Creek OHV Trail, 70°, 7 mph. Radar Hill OHV Area, 54°, 15 mph. Rasor Off-Highway Vehicle Area, 70°, 8 mph. Red Sands Off-Highway Vehicle Area, 90°, 5 mph. Rice Canyon Off-Highway Vehicle Area, 64°, 20 mph, active alert: Lake Wind Advisory. Robledo Mountains OHV Trail System, 93°, 7 mph. Rosita Flats OHV Area, 91°, 11 mph. Samoa Dunes, 63°, 2 mph. Sand Flats Recreation Area, 87°, 6 mph. Sand Mountain Open Off-Highway Vehicle Area, 79°, 17 mph. Sand Mountain Pipeline Designated Dispersed Camping Area, 79°, 17 mph. Sand Mountain Recreation Area, 73°, 5 mph, active alert: Red Flag Warning. Seep Springs OHV Area, 88°, 9 mph. Shoshone OHV Trail System, 72°, 5 mph. Shotgun Creek OHV Staging Area, 50°, 7 mph. Silver Lake ORV Area, 75°, 10 mph. South Cow Mountain OHV Management Area, 63°, 10 mph. St. Anthony Sand Dunes, 79°, 11 mph. St. Helen Motorsport Area, 75°, 9 mph. Standard Wash OHV Area, 86°, 17 mph. Stoddard Valley OHV Area, 68°, 6 mph. Table Mesa Recreation Area, 99°, 5 mph. Virtue Flat Off-Highway Vehicle Area, 63°, 0 mph. Weiser Dunes, 68°, 0 mph. Whitewash Sand Dunes Open OHV Area and Trail System, 84°, 0 mph. Winnemucca Sand Dunes, 72°, 6 mph.

Aden Hills Off-Highway… 93° 7 mph Alkali Lake OHV Area 95° 8 mph Amargosa Big Dune 95° 9 mph Aurora Open OHV Area 84° 23 mph Bangs Canyon OHV Trails 88° 8 mph Barnwell Mountain… 95° 6 mph Blue Creek OHV Area 91° 11 mph Boulders OHV Staging Area 98° 3 mph Buttercup Valley 101° 9 mph Cameo Cliffs/Hook and OHV… 82° 5 mph Chappie/Shasta Off-Highway… 70° 0 mph Cinder Hills OHV Area 82° -- Copper Basin Dunes OHV Area 86° 17 mph Coral Pink Sand Dunes 61° 7 mph Crescent Sand Dunes 75° 21 mph Cross Bar Ranch Off-Road Park 102° 10 mph Crossroads OHV Area 89° 17 mph Dove Springs OHV Area 67° 1 mph Dumont Dunes 81° 0 mph Dunes Off-Highway Vehicle Area 84° 6 mph El Mirage OHV Area 68° 8 mph Escondido Draw Recreational… 91° 14 mph Fort Sage Off-Highway… 71° 22 mph Fossil Creek OHV Trail 70° 7 mph Gemini Bridges 84° 0 mph Glamis / Imperial Sand Dunes 96° 12 mph Glenwood Open OHV Area 84° 23 mph Gordon's Well 101° 9 mph Grand Valley Open OHV Area 88° 8 mph Greater Sand Dunes SRMA 79° 6 mph Hackberry Lake Off-Highway… 95° 8 mph Hayfield Draw OHV Area 93° 3 mph Haystack Mountain… 81° 11 mph Head Canyon OHV Recreation… 84° 6 mph Hog Canyon OHV Trail System 61° 7 mph Hot Well Dunes Recreation Area 91° 4 mph Hungry Valley SVRA 58° 11 mph Jawbone Canyon OHV Area 59° 1 mph Johnson Valley OHV Area 69° 4 mph Killpecker Sand Dunes Open… 79° 6 mph Knolls Off-Highway Vehicle… 86° 15 mph Little Sahara Recreation Area 79° 23 mph Little Sahara State Park 99° 10 mph McCullough Peaks OHV Area 79° 11 mph Mescalero Sands North Dune… 81° 11 mph Millican Valley OHV Trail… 59° 0 mph Moon Rocks OHV Area 69° 11 mph Nellis Dunes OHV Area 82° 16 mph North Sand Hills OHV Area 73° 7 mph Northwest OHV Park 98° 7 mph Oceano Dunes / Pismo Beach 74° 7 mph Ocotillo Wells SVRA 87° 4 mph Pipestone OHV Area 61° 8 mph Poison Spider / Gold Bar 87° 6 mph Rabbit Creek OHV Trail 70° 7 mph Radar Hill OHV Area 54° 15 mph Rasor Off-Highway Vehicle Area 70° 8 mph Red Sands Off-Highway… 90° 5 mph Rice Canyon Off-Highway… 64° 20 mph Robledo Mountains OHV Trail… 93° 7 mph Rosita Flats OHV Area 91° 11 mph Samoa Dunes 63° 2 mph Sand Flats Recreation Area 87° 6 mph Sand Mountain Open… 79° 17 mph Sand Mountain Pipeline… 79° 17 mph Sand Mountain Recreation Area 73° 5 mph Seep Springs OHV Area 88° 9 mph Shoshone OHV Trail System 72° 5 mph Shotgun Creek OHV Staging Area 50° 7 mph Silver Lake ORV Area 75° 10 mph South Cow Mountain OHV… 63° 10 mph St. Anthony Sand Dunes 79° 11 mph St. Helen Motorsport Area 75° 9 mph Standard Wash OHV Area 86° 17 mph Stoddard Valley OHV Area 68° 6 mph Table Mesa Recreation Area 99° 5 mph Virtue Flat Off-Highway… 63° 0 mph Weiser Dunes 68° 0 mph Whitewash Sand Dunes Open… 84° 0 mph Winnemucca Sand Dunes 72° 6 mph

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South Cow Mountain OHV Management Area

Beautiful views, old-growth fir, oak, willows, streams, reservoirs

LocationMayacamas Mountains, east of Ukiah and west of Lakeport in Northwestern California
Entry points1 verified
Size23,000 acres
Conditions63° · 10 mph

Trip check

Before you go

  • Permit status not confirmed. Check with the managing agency.
  • Hazardous terrain includes narrow and winding access roads. Wildlife such as blacktail deer, bear, wild turkey, and other upland species inhabit the area. Mine shafts are not mentioned. Emergency contact numbers include Mendocino County Sheriff (707) 463-4411 and Lake County Sheriff (707) 272-4200.

Guide

About this area

The South Cow Mountain OHV Management Area offers beautiful views, old-growth fir, oak, willows, streams, reservoirs, and habitat for various wildlife species. The area has approximately 94 miles of designated roads and trails suitable for motorcycles, OHVs, and 4-wheel drive vehicles. Trails are marked with difficulty…

Camping

Dispersed camping is allowed throughout South Cow Mountain; however all vehicles must remain on designated routes and trails. Campgrounds have level parking, barbecues, fire pits, and picnic tables. Camping near springs or guzzlers will prevent wildlife from using the water source.

Facilities

Two developed OHV staging areas with graveled access roads, vault toilets, bulletin boards, trash receptacles, and picnic sites. Red Mountain Campground has ten campsites with picnic tables, fire rings, and barbecues, a group campsite, and vault toilets. Buckhorn Campground has four campsites with picnic tables, fire rings, and barbecues.

Full agency description

Note: The California State Parks OHV Preliminary Grant Applications, submitted by the BLM Ukiah Field Office, will be open for public review from March 3, 2026, to May 4, 2026. To provide your comments, visit the CA State Parks website and for the Agency field click on "BLM-Ukiah Field Office".

Overview

The South Cow Mountain OHV Management Area is located within the Mayacamas Mountains, east of the city of Ukiah and west of the city of Lakeport, in Northwestern California. The area offers beautiful views of Ukiah and Lake County; pockets of old-growth fir; several species of oak; willows; over 31 miles of stream; 13 reservoirs; and habitat for blacktail deer, bear, wild turkey, and other upland species. South Cow Mountain OHV Management Area consists of approximately 23,000 acres of public land that is managed for off-highway vehicle (OHV) use. There are two developed OHV staging areas within South Cow Mountain with graveled access roads accessible by two-wheel drive vehicles. Access roads into these areas are narrow and winding. Travel trailers and large recreational vehicles are not recommended. Vehicle use within the recreation area is limited to the 94 miles of designated roads and trails and is appropriate for motorcycle, Off-Highway Vehicles (OHV), and 4-wheel drive vehicles. The trails are marked with numbered signs displaying difficulty ratings (ranging from easy to extremely difficult) and the recommended vehicle type depending on the width of the trail. Operation and maintenance of the facilities, roads and trails within the South Cow Mountain OHV Management Area are funded in part, by the State of California Off-Highway Motor Vehicle Recreation Division. For more information or to review current and past OHV grants, visit: California State Parks Off-Highway Motor Vehicle RecreationFor information about ATV safety, visit: ATV Safety InstituteFor safety information or Recreational Vehicle training, visit: Recreational Off-highway Vehicle Association Emergency Information:In case of an emergency call 9-1-1Mendocino County Sheriff (707) 463-4411Lake County Sheriff (707) 272-4200Staging Areas and Campgrounds Westside Staging Area Vault toilets Double unloading ramp Bulletin board with OHV and area information Trash receptacles Four picnic sites with picnic tables and barbecuesOverflow parkingOakwood Springs Staging Area Vault toiletBulletin board with OHV and area informationTrash receptacles Three sites with picnic tables and barbecuesRed Mountain Campground Vault toiletsTen campsites with picnic tables, fire rings, and barbecuesGroup campsite with picnic tables, fire rings, and barbecuesTrash receptaclesBulletin board with OHV and area informationBuckhorn Campground Vault toiletTrash receptaclesFour campsites with picnic tables, fire rings, and barbecues

Camping

Dispersed camping is allowed throughout South Cow Mountain; however all vehicles must remain on designated routes and trails. The campgrounds afford level parking, barbecues, fire pits, and picnic tables. Camping near springs or guzzlers will prevent wildlife from using the water source. To insure you do not displace wildlife and livestock camp at least 300 yards from any water source. No potable water is available within the recreation area. CampfiresCampfires are allowed within South Cow Mountain provided you have a current campfire permit. Seasonal fire restrictions may prohibit campfires during periods of high fire danger. To check on fire restrictions, call BLM Ukiah Field Office at (707) 468-4000. California campfire permits are available free online at https://www.readyforwildfire.org/permits/campfire-permit/ or at all BLM, U.S.Forest Service and Cal Fire offices. For updates, a complete list of restrictions, including an interactive map, please visit the BLM California Fire Restrictions.

Access

Getting there

  • Mill Creek Road entranceEntrance

    In Ukiah take State Highway 101 south to the TALMAGE exit. Go east on Talmage Road about 1.5 miles. Turn RIGHT at East Side Road, travel less than half a mile to Mill Creek Road on the LEFT, then continue on Mill Creek Road 5 miles to the South Cow Mountain entrance.

    Pin from the managing agency

Rules

Rules

Specific to South Cow Mountain OHV Management Area

  • Registration is not mentioned; however, stickers are required for OHVs. Prohibited items include camping near water sources without a permit. Age and helmet rules are not specified.
Standard OHV rules (10)

Common equipment, registration and trail-use rules still apply.

  • ⭐ RIDE TO THE HIGHEST SAFETY STANDARD, NOT THE LEGAL MINIMUM. What is written below is what the managing agency requires. A helmet, eye protection, a flag and proper gear are what get you home — wear them whether or not the law where you are riding insists on it.
  • 🪖 Side-by-side / UTV (factory-built, steering wheel, bucket seats, under 1,000cc, does over 30 mph): helmets on the driver and every passenger, and seat belts or a harness fastened whenever it is moving. That is California law on public land.
  • 🪖 Sand car, sand rail, dune buggy, Jeep, or anything home-built or over 1,000cc: no helmet or seat-belt law applies. Wear them anyway — State Parks recommend it, and so do we.
  • 🪖 Quads and ATVs: helmet on every rider, any age. Dirt bikes: helmet required under 18.
  • ⚠️ Tuned it past 30 mph? A machine built for 30 or under that now goes faster is treated like a side-by-side — helmet and belt rules apply.
  • 👶 A child seat does not replace a helmet. In a side-by-side, a child in a car seat still wears one.
  • Source: California Vehicle Code §500, §38505, §38601–38602 — checked Aug 2026.
  • 🪖 Any helmet the law requires must meet FMVSS 218 and carry a DOT label — CVC 27802.
  • 📖 CHECK THE LAW YOURSELF — these requirements come from California State Parks OHMVR — Laws & Safety. Rules change, and you are responsible for compliance: ohv.parks.ca.gov
  • 🗺️ NO SIGNAL? TAKE AN OFFLINE MAP. BLM publish free GEOREFERENCED PDF maps that show your live GPS position with no cell service, in the Avenza Maps app or similar. Download the map for this area BEFORE you leave tarmac: www.blm.gov

Permits

Permits & registration

Permit and registration details

• Campfires are allowed within South Cow Mountain provided you have a current campfire permit. • California campfire permits are available free online at https://www.readyforwildfire.org/permits/campfire-permit/ or at all BLM, U.S.

State residents
California residents: OHV must display a current Green Sticker or Red Sticker registration from the CA DMV.
Out-of-state riders
Out-of-state riders: a California Nonresident OHV Use Permit is required unless your OHV carries current registration from your home state. $30 ($31.95 online), valid from purchase through December 31 of that year.
Bureau of Land Management official page (current closures & alerts)

Permit and registration rules change. Confirm current requirements with the managing agency before you ride — you are responsible for compliance.

Trip support

Fuel, food & local help

Pump gas & diesel

  • Ukiah, CA — fill at the 101fuel

    AT THE START OF THE DIRECTIONS · Full services in Ukiah. Nothing up Mill Creek Road.

Marketplace

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