Open space preserves are open to the public for your enjoyment and we strongly encourage you to come prepared for the outdoors. Cell service is limited in some of the preserves, so always remember to let others know where you’re going and when you’ll return home. Before hitting the trail, be prepared for all types of weather conditions and carry enough water and snacks for the entire day.
SIERRA VISTA Preserve
- Sierra Vista Open Space Preserve parking lot closes at 6:15 p.m. Visitors already in the preserve before 6:15 p.m. will be allowed to stay until 30 minutes after sunset (7:00 p.m.).
- NO PARKING ALONG SIERRA ROAD - you must be parked inside the gates to access the preserve.
- There is NO access to Sierra Vista from Alum Rock Park through Alum Rock Falls Road. Trespassing is strictly prohibited.
The Open Space Authority strongly believes that connecting people to nature and outdoor spaces provides essential benefits related to physical and mental wellness. Throughout the COVID-19 crisis, our open space preserves provided important places for the public to enjoy nature, along with modifications to protect the health and safety of our visitors and staff.
- To help slow and reduce the spread of COVID-19, the Open Space Authority office is closed until further notice with administrative staff working from home.
- When visiting Open Space preserves, please follow the CDC’s guidance on personal hygiene prior to heading to trails: wash hands, carry hand sanitizer, and cover your mouth and nose when coughing or sneezing. If you are feeling sick, please stay home for your own health and the health of other preserve visitors.
- In-person events are back! You can also check out interactive virtual nature events from the comfort of your own home!
- Learn more about Choosing Safer Activities from the Centers for Disease Control, and please continue observing the rules and conditions below.
FIRE & heat SAFETY
Red flag warnings and fire activity may impact trails or preserves as conditions change. Please check back on this page prior to visiting an open space preserve, and keep yourself safe to ensure emergency services are available for fires.
- Consider alternatives to outdoor activities during extreme heat and fire danger.
- Avoid activities that cause heat-related illnesses. Fire department staff responding to medical emergencies are not available to respond to fire.
- Do not overexert yourself while outdoors. Stay hydrated and sheltered from heat.
- Read more on our Summer Safety page.
On the Trails
- One-way directions are in place on multiple trails. Please check the conditions below for updates or download a temporary georeferenced trail map here.
- Please keep your distance from the wildlife.
- When visiting preserves, keep a safe distance from others as you walk, bike, or hike.
- Warn other trail users of your presence and as you pass to allow proper distance, and step off trails to allow others to pass, keeping recommended distances at all times. Signal your presence with your voice, bell, or horn.
- Remember that horses always have the right of way on the road and on the trail. Always give horses plenty of warning and space - especially if you are approaching from behind. Horses cannot see directly behind them and may spook or kick when startled. If in doubt, slow down or stop, then ask the rider if it's safe to pass.
- Preserve restrooms are open. Please bring your own hand sanitizer.
- There are no trash cans at the preserves. Please bring a suitable trash bag to collect waste and take with you when you leave. We thank you for not leaving any trash or food items on the trails, which can be harmful to wildlife.
- Printed maps are not available at preserves. Please download a map from our website before you go or take a picture of the map at the kiosk before you go on the trails.
With warmer weather and longer days, it's the perfect time of year to enjoy the outdoors. If you want to beat the crowds, try visiting the preserves at these times:
- Rancho Cañada del Oro - Try a weekend or weekday, any time. Main parking lot fills early – find parking in the preserve’s overflow lot.
- Coyote Valley - Try a weekday, any time. Weekends are busy all day.
- Sierra Vista - Try a weekday, any time. Weekends are busy all day.