City of Boulder Open Space & Mountain Parks

City of Boulder Open Space & Mountain Parks We're sharing news, stories and photographs about your Boulder open space.

Follow us for trail news, spectacular images from our community, and interesting facts about the incredible lands, wildlife and plants found on Open Space and Mountain Parks land.

Support OSMP projects by enjoying a night of jazz music under the full moon!
09/23/2026

Support OSMP projects by enjoying a night of jazz music under the full moon!

Want a ride to Full Moon Jazz?

Thanks to a generous donor, we now have a summit shuttle! Join us under the full moon this Sunday, September 27, as A Clint Dadian Trio fills the air and we watch the moon rise.

Registration is $25 per person, and we'll be raising funds for BOSC at the event. This event sold out quickly last time and spots are limited, so sign up today.

Claim yours: https://lp.constantcontactpages.com/ev/reg/qx77xpz

09/21/2026

Bears have been in the news a lot lately- here’s what you need to know:
Human bear conflict often stems from food- humans leave it out and bears want it! We’re seeing an increase in this issue due to the drought this year. To keep yourself, others and bears safe, use bear proof trash cans and remove attractants in your yard.

Help wildlife professionals by reinforcing bears’ dislike of humans and human places by making noise and honking your horn at them in town. Living where we get to see wildlife is an awesome privilege, but it’s important to do our part.

Trashcans: When you’re on open space, use bear-proof trashcans properly or pack out your trash. Make sure all trash (including food!!) makes it inside the trashcan and the lid is closed all the way. At home, invest in bear-proof trashcans if you can. Store them inside until trash day and promptly bring them back inside. Throwing a banana peel into the bushes might not feel significant because it can decompose, but it actually disrupts the natural ecosystem and can encourage animals to approach people and associate them with food.

Removing attractants: Bears have an amazing sense of smell, 100 times greater than yours or mine and an estimated 7 times greater than a bloodhound (nps.gov). They can definitely smell the fallen fruit in your yard! This includes bird seed and bird feeders (especially at night). Check out fruitrescue.org if you aren’t able to pick up your yard or if you’d like to volunteer to help others.

Reinforcing a fear of humans: Fear is a natural part of the animal kingdom, and it’s one of the best ways to keep wildlife and humans safe. Conservationists and wildlife professionals have worked for decades to install a healthy fear of humans in bears. This fear is what makes bears avoid humans- which means less bears being hazed, euthanized or killed. You can still see bears from afar, but it reduces close encounters which are more likely to lead to conflict. See a bear flipping trashcans? Honk your horn at it or make loud noise from a safe distance. The less pleasant rummaging through trashcans becomes, the less likely the bear will stay in town. Towns are dangerous to bears and there are hundreds of bear-vehicle collisions annually across the U.S.

Bear’s safety & ours: We think you can guess the “our safety” part, hint, bears have sharp claws and sharp teeth… but we know there is bound to be discourse about the bears safety. Wildlife professionals don’t make a lot of money- trust me when I say we are here because we love wildlife, the job and taking care of the land. Putting a bear down isn’t an easy or preferred choice. When appropriate, bears are tranquilized and relocated- but this isn’t as simple as it sounds and can lead to unintended risks. Tranquilizing bears is hard on the bear and isn’t always viable (factors considered include the age/size of the bear, location and weather). Even when successful, relocated bears can return to the area or repeat the behaviors in the new location. Increased risks include now crossing more roads, being in another bear’s territory, and not being able to find food in unfamiliar territory. Bears are euthanized only when this is the safest and/or most humane option. Wildlife officials are most often forced to do this when bears become habituated to humans and human places. That’s why doing your part by removing attractants and reinforcing healthy fear is important!

Thank you for helping to keep wildlife wild. For more information, check out OSMP.org or cpw.state.co.us

If you see a bear that is approaching people, eating human food, looting a trashcan or in the city, call non-emergency dispatch. Depending on who is available, Animal Protection, Park Rangers, or District Wildlife Managers will analyze the situation and do our best to haze the bear (often with the same tactics above: loud noises!). Call 911 for emergencies.

Let nature surprise you with its magic.  At Light Root Farm, you can learn about the medicinal properties of herbs, expl...
09/18/2026

Let nature surprise you with its magic.

At Light Root Farm, you can learn about the medicinal properties of herbs, explore an herbal apothecary and discover the many ways people have learned from and worked with plants over generations.

There are animals to meet, too! Cows, chickens and adorable baby piglets 🐽

Come get your hands in the dirt. Slow down. Get curious. And spend some time learning from the wisdom of plants, animals and the land.

Most opportunities are for teens, with some open to kids and families.

Learn more and register 👉 https://givepul.se/p0khwa

📸: Nancy Lindo

Does it bounce? 🐝It might sound like a strange question to ask in the field, but for Georgia, it can be a surprisingly u...
09/16/2026

Does it bounce? 🐝

It might sound like a strange question to ask in the field, but for Georgia, it can be a surprisingly useful clue when studying who’s using a pollinator hotel.

Georgia has spent the past three years monitoring pollinator hotels installed in Longmont, looking closely at the wood-nesting bees and wasps that use them. Her research has shown that there’s much more to these nesting resources than simply counting who moves in.

At the 2026 Front Range Open Space Research Symposium, Georgia will share what three years of close observation can teach us about pollinators.

Join us for the free, virtual symposium at bldr.fyi/fr-symposium

Love the land? Lend a hand. 🌿Celebrate National Public Lands Day with OSMP and help care for the open spaces you love.Jo...
09/14/2026

Love the land? Lend a hand. 🌿Celebrate National Public Lands Day with OSMP and help care for the open spaces you love.

Join us for a hands-on volunteer day focused on constructing the Saddle Rock Trail re-route.

This is a challenging volunteer opportunity with a difficult, steep hike to the worksite. Volunteers should be prepared to hike 3–4 miles roundtrip in dynamic terrain. Come ready to work hard, get outside and help care for Boulder’s open spaces in community. Lunch will be provided!

📍 Where: Chautauqua Ranger Cottage
🕘 When: Saturday, Sept. 26 from 9 a.m. to 3 p.m.
👉Register to attend: bldr.fyi/natl-public-lands

09/11/2026

Today marks 25 years since the September 11 attacks. We remember and honor the lives lost and the brave first responders.

We will never forget.

Foothills Trail from Foothills Trailhead west to the North Sky Trail junction will be closed during the week, 7 a.m. to ...
09/06/2026

Foothills Trail from Foothills Trailhead west to the North Sky Trail junction will be closed during the week, 7 a.m. to 5 p.m. starting tomorrow.

The trail will reopen on evenings and weekends through the month of September.

Thank you for your flexibility while we re-route the North Foothills trail to a more sustainable path that follows the natural contours of the land, that are less prone to erosion and trail widening. The new design will support long-term trail conditions and enjoyable, accessible visitor use.

Learn more about this project at bldr.fyi/foothills-reroute
Visit the link in our bio for a trail closure map.

Youth Volunteer Opportunity!Get a glimpse into the world of Junior Rangers by participating in a morning of wildfire mit...
09/04/2026

Youth Volunteer Opportunity!

Get a glimpse into the world of Junior Rangers by participating in a morning of wildfire mitigation work to help protect our community and the landscapes we all enjoy.

After the project, talk with an OSMP Ranger about what it's like to serve the community and respond to wildfires in Boulder.

When: Saturday, Sept. 12 from 8 to 11:30 a.m.
Register to attend: https://ow.ly/KXOz50ZC552

Wildfires are increasingly threatening both our ecosystems and our communities. But what happens to an ecosystem after t...
09/02/2026

Wildfires are increasingly threatening both our ecosystems and our communities. But what happens to an ecosystem after the fire and what role might our firefighting tools play?

Working with land managers and researchers across the Front Range, Trevor is studying whether the nutrients in fire retardants can encourage non-native species and create additional challenges for post-fire w**d management.

Learn more about his work at the free virtual symposium on Nov. 4. Register to attend at bldr.fyi/fr-symposium

There is so much to learn and enjoy in the outdoors with FREE nature programs for all ages and abilities.Find even more ...
08/31/2026

There is so much to learn and enjoy in the outdoors with FREE nature programs for all ages and abilities.

Find even more programs at NatureHikes.org.

Address

2520 55th Street
Boulder, CO
80301

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Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

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