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  1. Trails
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  1. Arapahoe County Open Spaces

Master Plan
Fairgrounds
Trails Map
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Spotlight

  1. The Open Spaces Department works to preserve natural and heritage areas, enhance neighborhood and regional parks and build and maintain trails. Since its inception, the program has built more than 73 miles of new trails, supported more than 160 park and trailhead projects, and conserved more than 31,000 acres of open space.
  1. SMP_CP_Sheep_Wool_20210505

    Heritage sheep & wool spinning at 17 Mile House Farm Park

    During this educational program, learn why we shear sheep and what happens to the fleece and sheep afterwards Read on...
  2. pic_5K-June_12_web_spotlight

    Register now for June 12

    Our next 5K TRAIL WALK/RUN is along the Cherry Creek Trail. Camp Gladiator will lead a pre-race warmup! Free race t-shirt and pancakes at the finish line. Additional Info...
  3. SMP_CP_Chalk_LinesVines_2021

    Join us for Chalk Lines & Vines, our first wine and chalk art festival

    Tickets on sale now! Read on...
  4. SMP_CP_Fair_Public_Competitions_2021

    Is there a Blue Ribbon in your future?

    Calling all creatives, gardeners, makers, and more! Plan now to exhibit your entries at the 2021 Arapahoe County Fair Additional Info...
  5. pic_OS_2020_annual_report_cover

    Open Spaces delivers real results in 2020

    Read about what the Open Spaces department accomplished in 2020 and exciting plans in the works as we look ahead Read on...
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Stay Engaged

  1. Learn more about our program and take a walk outside along your favorite trail or bring your children to play in a neighborhood park. Chances are you'll see examples of your open space tax dollars at work in Arapahoe County's great outdoors. 
  1. News
  2. Calendar
  3. Volunteer
  1. News
  1. SMP_CP_Sheep_Wool_20210505

    Heritage sheep & wool spinning at 17 Mile House Farm Park

    During this educational program, learn why we shear sheep and what happens to the fleece and sheep afterwards Read on...
  2. SMP_CP_Chicken_Chicks_2021

    Backyard Chickens and Chicks educational program

    Join us on May 1 at the 17 Mile House Farm Park for fun, hands-on activities for youth. Registration is required, but the event is free. Read on...
  3. pic_OS_2020_annual_report_cover

    Open Spaces delivers real results in 2020

    Read about what the Open Spaces department accomplished in 2020 and exciting plans in the works as we look ahead Read on...
  1. SMP_CP_Fair_Public_Competitions_2021

    Is there a Blue Ribbon in your future?

    Calling all creatives, gardeners, makers, and more! Plan now to exhibit your entries at the 2021 Arapahoe County Fair Additional Info...
  2. SMP_CP_Chalk_LinesVines_2021

    Join us for Chalk Lines & Vines, our first wine and chalk art festival

    Tickets on sale now! Read on...
  3. CivicPlus_Feb 2021 Town Hall-01

    Arapahoe County Open Spaces virtual town hall to discuss County’s Master Plan

    Join us Thursday, March 25 at 6:30 p.m. to discuss the future of the Arapahoe County Open Spaces program Read on...
View All News
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  1. Calendar

May 2021

Sun Mon Tue Wed Thu Fri Sat
25 26 27 28 29 30 1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31 1 2 3 4 5

  1. Mon May 10

    Open Space and Trails Advisory Board (OSTAB) Special Meeting
    Read More

  2. Sat May 15 - Sun May 16

    Chalk Lines & Vines Event details and ticket sales available March 15 Wine and chalk art festival. May 15-16, 2021
    Read More

  3. Sat Jun. 12

    5K Trail Walk/Run Series Event details and tickets sales available March 8 Four 5K walk/runs in celebration of Arapahoe County’s trails. April 10, June 12, August 14, October 9, 2021
    Read More

  1. Wed Jun. 16

    Pictures on the Plains Details and ticket sales available closer to event date Outdoor summer movie series. June 16 and 30, 2021
    Read More

  2. Mon Jun. 28

    Open Space and Trails Advisory Board (OSTAB) Monthly Meeting
    Read More

  3. Wed Jun. 30

    Pictures on the Plains Details and ticket sales available closer to event date Outdoor summer movie series. June 16 and 30, 2021
    Read More
View All Calendars
/Calendar.aspx
  1. Volunteer

OS Volunteer

There are many ways citizens can get involved, from volunteering to serving on a citizen board, such as:

  • Citizen Boards and Committees
  • Volunteer Connections
  • Arapahoe County Foundation
  • Arapahoe County Sheriff’s Office Citizen Academy
  • Homeowner and Neighborhood Associations 

Visit our Get Involved page to learn more!

  1. FooterSeal

Contact

  1. Arapahoe County Open Spaces

    6934 S Lima Street
    Centennial, CO 80112

    Phone: 720-874-6540

    All County Offices

Helpful Resources

  1. Trails Map
  2. Rentals
  3. Weed Control
  4. CSU Extension
  5. Animal Control
  6. Mosquito Control
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