2025 Annual Program Metrics

In 2025, over 1,564 volunteers contributed a total of 17,550 hours of service.

  • Ongoing Program Volunteers: 317 volunteers spent over 11,450 hours working in 20 distinctive programs at OSMP and made more than 80,000 public contacts.
  • One-Day Volunteer Projects (ODVP): 1,248 volunteers spent over 6,053 hours volunteering for various land management projects through service-learning.
  • Bridge House Ready to Work (RTW) Crew: Two RTW Crews of six worked over 5,000 hours in 2025.
  • Junior Ranger Program: 110 youth hired from 264 applicants in 2025.
  • The Boulder Open Space Conservancy (BOSC) raised a total of $75,000 for OSMP in 2025.

The Volunteerism and Service Learning (VSL) team aspires to grow an inclusive culture of service and a community of stewards that gives back to the City of Boulder Open Space and Mountain Parks.

Bar graph of number of OSMP volunteers per year from 2008 to 2025

Number of OSMP volunteers by year with pre-flood years noted. An increase in volunteers was seen in the years following the 2013 flood. The Covid pandemic years are also noted showing a decrease in the number of volunteers. OSMP had 1,564 volunteers in 2025. 

VSL Program Highlights: Ongoing Program Volunteers

Dog Ambassador Volunteers

a woman wearing an OSMP beanie hat poses for a picture on a trail with her brown dog wearing a neon yellow vest that says "Dog Ambassador".

This program is now in its third year at OSMP. Designed to model appropriate dog/guardian behavior. Ten Ambassadors and their 8 furry companions educated visitors on dog-related topics. Important subjects include the voice and sight program, canine related safety, and resource protection. As well as participating in our annual DOO It education event, they assisted with new “dog water” stations in the Chautauqua area this year.

Wildlife Monitoring Volunteers

A person stands on a grassy hillside facing a rock cliff with a spotting scope.

Monitors spent many field hours out on the land counting and reporting on animal presence and behavior. OSMP’s staff ecologists use volunteer data while managing land for bat and raptor species, and communicate information out in a monthly newsletter to volunteers. It was a successful nesting year for raptors.

Bike Patrol Volunteers

Three bikers on a wide gravel trail, wearing helmets and smiling, two of their bikes have orange placards that read "Boulder Mountain Bike Patrol".

Bike Patrollers were very active this year. They hosted and staffed 6 outreach tables in partnership with the Boulder County Horse Association and Boulder Mountain Bike Alliance. The program continued a successful campaign of giving away bike bells and educating riders on their use to promote sharing the trail respectfully. Bike Patrollers also went on multiple North Sky small group rides as a presence on the land effort.

Visitor Ambassador Volunteers

A uniformed volunteer at Chautauqua Trailhead shows a family with two young kids various skulls and pelts to learn about nature.

Flagstaff Nature Center, Chautauqua Ranger Cottage and Trailhead Ambassadors continue to help thousands of hikers and visitors with trail and safety assistance as well as natural resource information. They made over 35,000 public contacts again this year at those 3 locations. As volunteer needs change, this gives expert community members a spot to work and contribute without necessitating the need to be out hiking or biking on the land.

Restoration Steward Volunteers

Three people bent over working in Chautauqua Ranger Cottage Garden in mid-summer.

OSMP offers a variety of restoration stewardship options, from group volunteering to solo projects in priority locations. The Skunk Canyon Weeder volunteers continued to have a strong presence doing manual weed control work, predominately pulling Myrtle Spurge. Chautauqua Native Garden volunteers keep our gateway to the Flatirons looking great by weeding, trimming, transplanting and collecting seeds for native perennials and shrubs. In addition, a committed volunteer helped with restoration stewardship needs at Mt. Sanitas.

Trail Ambassador Volunteers

Man wearing volunteer shirt explains something to a woman hiking.

As tradition, another class of 12 new volunteers trained this fall. There are now 70 active Trail Ambassadors who made more than 45,000 public contacts on the land. Ambassadors have changed to a system of counting if their contacts are informative (directions, natural resource information), non-informative which is a cordial greeting and brief conversation, or infraction based (advising on regulations). They are very appreciative of their updated OSMP volunteer uniforms, to include sun protective shirts and hats.

Naturalist Volunteers

Standing in an open field, a volunteer in uniform faces a group of students with hands raised.

Staff spent much time supporting the new group of 10 Education Naturalists trained the previous year as well as re-engaging with their current cohort to help mentor this new team. These volunteers are tasked with educating Boulder's youth both in schools as well as on OSMP land. They also spent the year re-working the in-classroom Winter Wildlife education series that reaches over 1,000 students with more than 135 individual programs. With another 2,000 students reached on field trips.

Cultural Steward Field and Research Volunteers

Five people on a trail in the foothills use small hand-held tools and discuss.

OSMP on-boarded 6 field and 3 research volunteers to assist staff in the Cultural Stewardship Program in partnership with the Indian Peaks Chapter of the Colorado Archaeological Society (IPCAS). The program provides regular opportunities for volunteers to assist staff with projects in the field which greatly increases program capacity. In the future, the Cultural Resource Stewardship Program (CRSP) program will expand to allow volunteers to independently monitor cultural resources across the OSMP system. This will help staff to track resource conditions across OSMP over time and mitigate impacts to cultural resources such as looting or erosion.

Public Program and Wellness Volunteers

Two people presenting with photos to a group next to a smooth cliff.

Six volunteers worked extensively on programming for, and presenting to adults to include Forest Bathing, White Rocks hikes, Art offerings and Jewel Mountain field trips.

Open Space Board of Trustees (OSBT) Volunteers

Person holds bike above their heads with northern lights in background

Five OSBT trustees supported priority wildfire resilience efforts including night-time safety-related infrastructure, communications, and enforcement along the Flagstaff Mountain corridor. Trustees also approved the acquisition of key mineral rights.

Additional Ongoing Program Volunteers

Small child petting a horse.

Other skilled volunteers offered their talent and time to make an impact at OSMP, including photographers, recreation volunteers (fishing programs), and Administrative Volunteers, who continue to help manage the volunteer database!

VSL Program Highlights: One Day Volunteer Projects

Trail Project Volunteers

Person uses rake to smooth new trail soil.

Total: 542 Volunteers, 2,947 hours

The Trails Volunteer Team took on a wide range of impactful projects this year. Volunteers supported trail work on Mount Sanitas, maintained the South Mesa area for National Trails Day, and helped build the Saddle Rock Trail Reroute for National Public Lands Day. Additionally, more than 150 volunteers contributed to the Degge Trail Reroute in the Boulder Valley Ranch complex, which will provide a more accessible trail to the community, including those who use adaptive bikes.

Trailhead Volunteers and Community Service Project Volunteers

Volunteers spread gravel on South Mesa trailhead trail during National Trails Day.

Total: 237 Volunteers, 1,805 hours

The Trailheads team works with community service, Eagle Scouts, and other volunteer groups to support projects to improve and maintain infrastructure across the OSMP system. 2025 included 122 Community Service volunteers who contributed 1,250 hours, and 115 One-Day volunteers who gave 555 hours on large group volunteer projects supporting Trailheads with project priorities.

VSL Project Volunteers

Volunteer wearing helmet and safety gear smiles and poses in front of group working in a forest with a chipper.

Total: 469 Volunteers, 1,301 hours

The Forestry Team paused volunteer work during COVID for safety reasons, making this the first year volunteers have returned since 2019. Volunteers learned how forest management practices reduce heavy fuel loads, support overall forest health, and how the removal of fire as a natural process has impacted ponderosa pine ecosystems. Volunteers helped drag and haul ponderosa pine slash to a forestry chipper, reducing excess fuels and contributing to healthier forests.

VSL Program Highlights: Equity & Inclusion Partnerships

Bridge House Ready to Work Contract

A group of people pose for a team photo on a trail in front of some cliffs.

In 2025, Bridge House Ready To Work (RTW) Crews, which are adult work crews of six who are experiencing homelessness and are given the opportunity to rebuild their lives through work, supported the work of about 10 OSMP work groups. A majority of their projects supported OSMP Climate Action projects. The two RTW crews provide annual support for the Wildland Urban Interface (WUI) fine‑fuels mowing program at Shanahan Ridge, North Boulder, Wonderland Lake, and Chautauqua.

Equity & Inclusion with Agriculture - Natural Highs

Group of all ages greet and pet a horse at a farm.

This multilayered program involves the teen group Natural Highs that cultivate, grow and harvest an herbal apothecary at Light Root Community Farm for a holistic approach to sustainable regenerative organic agriculture practices. Teens in this program also learn about OSMP’s agricultural lease program along with wellness and recovery practices.

Equity & Inclusion with Agriculture - Rocky Mt. Equality

Group of youth from Rocky Mountain Equality pose at the farm.

A group of 15-20 youth from Rocky Mt. Equality (LGBT+ middle schoolers) joined Esoterra Culinary Garden for monthly programs that taught students about vegetable farming, the preservation of agricultural lands on OSMP, and pollinator health. Students picked out what seedlings to plant, observed growth changes, trimmed tomatoes and learned companion planting basics.

VSL Program Highlights: Junior Rangers

OSMP Junior Ranger Program

Group of teens pausing to enjoy the rain while working outdoors

In 2025, we celebrated 60 years of the Junior Ranger program supporting the City of Boulder. This season felt especially meaningful. Grounded in hard work, deep care for our lands, and the collective energy of youth, staff, and the community partners who continue to believe in this program.

Over the course of the season, our youth contributed 5,843 total person hours and 479 crew hours to trail and land stewardship across Open Space and Mountain Parks. Those hours translated into real, tangible impact on the ground.

Testimonials

Junior Ranger Program

“Through the program, I’ve grown more than I ever could have without it. I’ve grown more in my leadership, carrying it with me in my other activities and social circles. The program gave me something to look forward to in every tomorrow. It’s part of who I am now and it’s the reason I come back so refreshed every year, despite being thoroughly burnt out by the end of the season. JR brings me clarity, allowing me to feel comfortable sitting quietly, alone with my thoughts and expressing my emotions naturally.” - Aster D, 4th year Junior Ranger.

Trailwork Tuesdays/ One Day Trail Projects

“This experience was one of the best I've had since moving to Boulder. I've taken for granted all the hard work that goes into trail building/maintenance. I'll remember this experience for a long time and will be more inclined to find opportunities like this in the future." - A Trailwork Tuesdays/Wednesdays volunteer

Lightroot Community Farm Natural Highs Teen Program

“Light Root Community Farm has helped me immensely. Every single time I have visited this heaven on earth, I feel so much better than I did when I came in. This farm is so healing in a beautiful, beautiful way and I'm so thankful I got to visit multiple times and connect with the animals as well with Cameron and Daphne.” - Aster, Natural Highs Peer Leader

Visitor Ambassador

“I enjoy volunteering as an ambassador at the Chautauqua trailhead and ranger cottage. As a long time Boulder resident, it can be easy to take our surroundings for granted. As a volunteer you get to see Boulder from an outsider’s eyes and realize what a world class destination Boulder is." - Andy Ames

Education Naturalist

“One of best programs for me was a 4th grade, 3-hour ecology/geology program at Chautauqua. The kids were very engaged as I presented a variety of activities and information. The reason it was memorable was that I felt the kids experienced awe and felt a connection to nature.” - Education Naturalist

“After every program and hike I find myself reflecting, thinking, reviewing, and trying to absorb so much information we received during the trainings. Thank you so much for making me part of it. This program is so professional. I feel very privileged to be a volunteer with OSMP!” - Freya Henry, Education Naturalist

Dog Ambassador

“Met a couple with a young puppy. They asked questions about dog etiquette and good trails for dogs. Thought you'd like this quote - ‘That was very helpful... tell OSMP that the trail ambassador program is working!’” - Kevin Ferris, new OSMP Dog Ambassador

2025 Volunteer Numbers & Hours

Volunteer Program Number of
Volunteers
Hours Notes
Trails - One Day Volunteer Program (ODVP)

542

2,947

Includes hours from partner organizations:

BMA (101 vols, 303 hours) and BCC (97 vols, 502 hours)

VSL - One Day Volunteer Program (ODVP)

469

1,301

Trailheads - One Day Volunteer Program (ODVP)

237

1,805

Photographers

1

8

Administrative

1

15

Cultural Steward - Research

1

11

Cultural Steward - Field

6

43

New group in 2025
Education: Naturalists

32

1,154

Education: Public Programs

8

300

Recreation Volunteers

1

3

Adaptive Recreation/ Accessible Programming

6

75

Restoration Steward Volunteers

1

20

Maintenance: Skunk Canyon Weeders

8

171

Native Garden

6

88

Raptor Monitors

31

1,592

Bat Monitors

31

741

Chautauqua Ambassadors

22

941

Flagstaff Ambassadors

16

405

Bike Patrol

61

1,174

Dog Ambassadors

9

201

Trail Ambassadors

70

4,087

Open Space Board of Trustees

5

468

Grand Total

1,564

17,550