Open Space Email Updates!
Receive information about Boulder Open Space and Mountain Parks trails, nature hikes, and projects to help our community enjoy and protect open space. Sign up for our "Field Notes" e-newsletter!
Check the weather forecast; weather in Boulder can change quickly!
View information about specific recreational activities on OSMP:
Let a friend or family member know where you’re hiking and when you expect to be done.
Have an alternate plan in case the parking lot is full. Parks and trails are generally less crowded on weekdays. Trailhead parking lots are often full early in the morning on weekends. Review the Visitation Data Explorer to see when trailheads are less busy.
It is unsafe and illegal to park in a way that:
Blocks emergency access gate or fire lane;
Blocks pedestrian gate or driveway;
Prevents horse trailer parking; or
Along any highway or a roadway where prohibited by sign.
All vehicles parked in a manner described above are subject to being ticketed/towed.
Never park in the roadway. The roadway is defined as the space between the white (fog) line and the yellow (center) line (see photo below). If ANY part of your vehicle (tire, mirror) is between the white and yellow lines, your vehicle is a hazard and can be ticketed/towed immediately.
It’s often legal to park in residential neighborhoods but please be considerate and don’t block driveways or encroach on private property.
Dress in layers and be prepared with rain gear, lots of water and sun protection. Hats, sunglasses and sunscreen are important to protect your skin and eyes at high altitude.
Appropriate footwear: stay on trail and walk through mud to prevent habitat damage and trail widening.
During fall, winter and spring, you may encounter icy sections of trail; metal traction devices for your shoes/boots are recommended (see below).
Other items to keep in your pack:
Headlamp - in case your hike takes longer than expected.
Bug spray - OSMP is home to ticks and mosquitoes.
And don’t forget about your dog! Dogs can suffer from heat exhaustion, pad injuries and dehydration, just like humans. If you’re bringing your dog with you, be sure to bring enough water for them to drink and a portable water bowl.