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Junior Ranger Program

“The program engages youth in OSMP and in their environments. This program has given me a sense of ownership and stewardship for Boulder’s environment and has made me appreciate it more.”

Hey there! Things have changed. As you can see, we have a new website! And we’ve changed our naming system and program structure.

The Junior Ranger Program is now the overarching name for two tracks this summer. Applicants can choose between the Youth Ranger Crew or the Conservation/Trail Crews.  

News Feed: Stay up to date with what’s going on!

  • Junior Ranger applications have closed. All eligible candidates have been sent an interview invite email from Please check the email you used to apply for this important notice! You must self-schedule an interview time by Wednesday, April 10. 3rd and 4th year candidates do not need to interview as they are evaluated based on previous performance. 3rd and 4th year candidates will be notified of their application status by email on May 1.
  • We are still accepting late Reference Forms for Junior Ranger applicants. To submit a Reference Form on behalf of a Junior Ranger applicant, please visit the online reference form.
  • Did you know? OSMP now has an Instagram account! Why? Because you, the Junior Rangers, asked for it! Follow @boulderosmp to stay up to date, and tag us (#boulderosmp) to get your awesome photos on our feed!
  • In December, 6 Junior Rangers and Junior Ranger Naturalists presented at the Open Space Board of Trustees about their experiences working for the program. Start watching at 15:30 minutes into the meeting. Huge thanks to Brooke, Ty, Carina, Fiona, Hannah, Chris, and Connor (who attended to support the team)!

Who We Are

The Junior Ranger Program is an opportunity for teens ages 14 to 17 years old to be employed by the City of Boulder’s Open Space and Mountain Parks (OSMP) department to work on a variety of natural resource projects. Established in 1965 to create jobs for young people and help them develop work skills while maintaining Boulder’s public lands, the Junior Ranger Program has now employed over 4,000 youth. Since then, the program has built a legacy of community stewards who have a personal investment in the future of OSMP and all public lands.

What We Do

Since 1965, hardworking and dedicated Junior Rangers complete trail maintenance and construction, forestry, vegetation, and ecological restoration projects across OSMP lands. Junior Rangers are led by exceptional, well-trained support staff, learn critical work skills, explore OSMP, support department goals, and serve the Boulder community. Through the Junior Ranger Program, employees also receive career and leadership development as they work beside project sponsors and natural resource professionals and attend organized talks and trainings with department staff. Exposure to these management practices combined with environmental educational presentations, develop lifelong stewards.

A Day in the Life of a Junior Ranger

“This program teaches youth the skills necessary to be effective, responsible leaders and stewards of our natural resources.”

Be a Junior Ranger

Recruitment closed for 2019.

Lead a Junior Ranger

Recruitment closed for 2019.