fallen tree on trail

This information is updated as needed when trails are opened or closed, or when there is scheduled trail maintenance.

Trail conditions can vary depending on the time of year, the impact of rain and storms, construction and maintenance and other occurrences. Please be aware that trail closures may change from day to day without notice, based on current and predicted weather conditions. During winter storm season high waters can make creek crossings hazardous, so plan your outing accordingly. 

Trail closures are strictly enforced.

Bear Creek Redwoods

  • A northern section of the Upper Lake Loop Trail will be CLOSED periodically between Sept. 16 and Oct. 31 for public safety due to construction required to increase flood protection. See the YELLOW section on the map below for the impacted area. A section of Bear Creek Road will be reduced to one lane of traffic from 9 a.m. to 3 p.m., Monday through Friday, Sept. 23-27, in order to install a new culvert under the road. The contractor will provide traffic control services on this county-owned road during this period.
    Upper Lake Loop Trail area affected by construction.
Date updated: Wednesday, September 11, 2019 - 4:30pm

El Corte de Madera Creek

  • Methuselah Trail, from Giant Salamander Trail to South Leaf Trail, is CLOSED to equestrians due to trail damage.
  • The eastern portion of the Steam Donkey Trail is PERMANENTLY CLOSED. The trail between the Oljon junction and Highway 35 has been replaced with a newly constructed section 1.3 mile section of the Oljon Trail, connecting to Springboard. This final portion of the watershed protection program reduces the need for preserve visitors to access Highway 35 during their visit and adds over 2,000 feet of new single track to the existing trail network. Download map of trail construction area.
Date updated: Wednesday, September 11, 2019 - 9:15am

Fremont Older

  • Vista Loop Trail is CLOSED to all use between the Fern Trail and the Look Out Trail due to storm damage. 
Date updated: Friday, September 13, 2019 - 8:15am

La Honda Creek

  •  Folger Ranch Loop Trail is OPEN to hikers and equestrians; however, please use caution in the area as the trail tread on the lower elevations has severe cattle hoof impact and is heavily pocked. 
Date updated: Monday, May 6, 2019 - 7:30pm

Long Ridge

  • Peter's Creek trail and Long Ridge Trail are OPEN to bicycles and equestrians.
  • Achistaca Trail is OPEN to equestrians
Date updated: Sunday, June 16, 2019 - 6:00pm

Monte Bello

  • Stevens Creek Nature Trail is OPEN, bridge construction is now complete.
  • White Oak Trail is OPEN.
Date updated: Wednesday, July 17, 2019 - 10:00am

Purisima Creek Redwoods

  • Purisima Creek Trail will be CLOSED for bridge construction between Grabtown Gulch Trail and Craig Britton Trail from September 3 through November 2019. Please plan your trip accordingly. 

    For more information regarding this project please contact Bryan Apple, Capital Projects Field Manager: 650-691-1200 ext. 527.



Date updated: Friday, August 16, 2019 - 3:45pm

Rancho San Antonio

  • Trails in the backcountry area of Rancho San Antonio Open Space Preserve are NOW OPEN. Many trails were recently closed because a mother mountain lion and three adolescent cubs had become habituated to people. This mountain lion family has moved to less used areas of the preserve on their own. Should the lions linger in areas of the preserve more used by humans, future closures may occur. Please continue to check this page before planning an outing.
  • A portion of the Hammond-Snyder Trail is CLOSED, due to construction by the Santa Clara Valley Water District. The CLOSED segment of trail is marked in RED on the map below. Find out more about the Permanente Creek Flood Protection Project at valleywater.org.
    A portion of the Hammond-Snyder trail is closed during SCVWD construction.
Date updated: Wednesday, September 11, 2019 - 3:00pm


  • Ravenswood Open Space Preserve and parking lot will be CLOSED during construction of the Ravenswood Bay Trail: August 19, 2019 - January 31, 2020.
Date updated: Tuesday, August 6, 2019 - 1:00pm

Sierra Azul

  • The area surrounding the base of the Mount Umunhum radar tower is CLOSED to public access at this time. Visitors can access the East Summit using a temporary covered walkway. More info.
  • Additional closed areas within Sierra Azul Preserve are shown on the Preserve map.
Date updated: Wednesday, June 19, 2019 - 3:15pm

Windy Hill

  • Vegetation clearing for fire safety will cause short trail closures or reroutes from the Portola Road parking lot to Sausal Pond September 17 from 8 a.m. to 5 p.m. The trail may be closed for short periods for the safety of trail users. Staff will be present to assist with navigating the work zone.
  • The Betsy Crowder Trail is now OPEN to equestrians.
  • The Lost Trail, Hamms Gulch Trail, and Razorback Ridge Trail are OPEN to equestrians.
Date updated: Thursday, September 12, 2019 - 12:00pm

Teague Hill

  • All trails at Teague Hill are now OPEN. On 8/11/19, Fire crews responded to a 1/2 acre vegetation fire in the preserve.  The fire has been extinguished.
Date updated: Sunday, August 11, 2019 - 4:30pm