For your information, here is a list of 51 places currently closed to mountain biking - although this is not meant to be all inclusive list, this is what has been found on the Internet as of 11-1-02. Please send me any corrections or additions. Mike Vandeman <mjvande@pacbell.net>

Annadel State Park (All but one trail are multi-use), CSP, Sonoma County

Big Basin State Park (bikes permitted on fire roads only), CSP, Santa Cruz County

Bolinas Lagoon Preserve, Audubon Canyon Ranch, Marin County (no bikes on trails)

Butano State Park (bikes permitted on fire roads only), CSP, San Mateo County

Calero County Park (no bikes permitted on any trails), SCCP, Santa Clara County

Castle Rock State Park (no bikes permitted on any trails), CSP, Santa Cruz County

China Camp State Park (All shared use trails designed and constructed to be shared use)

Chino Hills State Park (5 trails closed to mtn bikes, speed enforcement on others)

City of Boulder Open Space District (most trails closed to bikes in 1987)

Coal Mine Ridge, Portola Ranch Homeowner's Association, San Mateo County

Crescent Trail , Fairport New York (trail closed to mountain bikes after 1 year experiment)

East Bay Municipal Utility District watershed lands (no bikes permitted except on pavement)

East Bay Regional Park District (no bikes permitted on narrow hiking trails, except one connector between two park sections in Pleasanton Ridge Regional Park)

El Corte de Madera Open Space Preserve (All trails but the short path to the Tafoni are multi-use), MROSD, San Mateo County

Fall Creek Unit, Henry Cowell State Park (no bikes permitted on any trails), CSP, Santa Cruz County

Grant County Park (Most trails are multi-use. A few are closed to cyclists, and a handful are hiking-only. Some illegally cut bike trails),

SCCP, Santa Clara County

Hidden Villa, Santa Clara County (No bicycles are permitted. Most trails are signed hiking only, but a few permit equestrian use)

Huckleberry Botanic Regional Preserve (no bikes permitted on any trails), EBRPD, Contra Costa County

Indian Tree Open Space Preserve (bikes are permitted only one trail; others restricted), MCOSD, Marin County

Inyo National Forest, Forest Service (lot of trails open to bikes, but where hiker usage is heavy they are excluded even outside of wilderness)

Junipero Serra County Park (bikes only permitted on park roads; no bikes on trails), SMCPD, San Mateo County

La Honda Open Space Preserve (No bikes, horses, or dogs are permitted), MROSD, San Mateo County

Loch Lomond Recreation Area (No bikes or horses), City of Santa Cruz, Santa Cruz County

Los Trancos Open Space Preserve (No bikes. No dogs), MROSD, San Mateo County

Los Vaqueros Watershed (no bikes permitted at the County Line Staging Area, south end of the watershed), CCWD, Contra Costa County

Marin Municipal Water District MMWD , Mt. Tamalpais (130 miles of hiking trails not open to bikes 90 miles of fire roads open to bikes)

Maurice Thorner Memorial Open Space Preserve (no bikes permitted on the preserve's trail), MCOSD, Marin County

McNee Ranch State Park (Most trails are multi-use. Two trails are designated hiking only.), CSP, San Mateo County

Middlesex Fells Reservation Massachusetts (some hiking only trails - Orange, Blue and White)

Miller/Knox Regional Shoreline (no bikes permitted on the trails in the park's eastern section), EBRPD, Contra Costa County

Mount Madonna County Park (no bikes on park trails), SCCP, Santa Clara County

Muir Woods National Monument (no bikes permitted on any trails), MWNM, Marin County

Napa River Ecological Reserve (no bikes permitted), California Department of Fish and Game, Napa County

Olompali State Historic Park (no bikes permitted on any trails), CSP, Marin County

Palomarin Trailhead (no bikes south of Wildcat Camp), PRNS, Marin County

Palos Forest Preserve Illinois (dirt with a gray marker, it's open - all other trails closed to bikes)

Pichetti Ranch Open Space Preserve (No bikes, no dogs), MROSD, Santa Clara County

Pulgas Ridge Open Space Preserve (No bikes or horses), MRSOD, San Mateo County

Portola Redwoods State Park (allowed on paved roads only), CSP, San Mateo County

Rush Ranch Open Space Preserve (no bikes permitted on any trails), Solano Land Trust, Solano County

Sanborn-Skyline County Park (no bikes permitted on any trails), SCCP, Santa Clara County

Soquel Demonstration State Forest (Trails are multi-use), California Department of Forestry, Santa Cruz County

Thornewood Open Space Preserve (no bikes permitted on the one trail), MROSD, San Mateo County

Tomales Bay State Park, CSP, Marin County (no bikes on trails, bikes ok on paved park road)

Tomales Point Trailhead, Point Reyes National Seashore (no bikes on the trail).

Uvas Canyon County Park (no bikes permitted on any trails), SCCP, Santa Clara County

Villa Montalvo County Park (no bikes permitted on any trails), SCCP, Santa Clara County

Westwood Hills Park (no bikes permitted on any trails), City of Napa Parks and Recreation

Wilder Ranch State Park (All trails are multi-use, except for the path on the south side of Highway 1, which is closed to equestrians), CSP, Santa Cruz County

Wunderlich County Park (no bikes permitted on any trails), SMCPD, San Mateo County

Yosemite National Park (bicycles on paved roads and paved trails only)

CCWD=Contra Costa Water District

CSP=California State Parks

EBRPD=East Bay Regional Park District

MCOSD=Marin County Open Space District

MROSD=Midpeninsula Regional Open Space District

MWNM=Muir Woods National Monument

PRNS=Point Reyes National Seashore

SCCP=Santa Clara County Parks

SMCPD=San Mateo County Parks Department

These are just places in this country.

You are respectfully invited to visit our fledgling website, it is growing daily. http://SafeTrails.net