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  1. Trails
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  1. Arapahoe County Open Spaces

Master Plan
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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_Convo_Commissioners_OpenSpace_FNL_20210714

    Conversations with Commissioners focus on Open Space Sales and Use Tax

    The Open Space Sales and Use Tax will soon be up for reauthorization by our voters. What does that mean for you and your family? Read on...
  2. SMP_CP_Agricultural_Bio_20210714

    Agricultural biodiversity open house at 17 Mile House Farm Park

    On Aug. 7, learn how the diversity of crops and their wild relatives, trees, animals and other species all contribute to the food we eat Read on...
  3. SMP_CP_5K_Richmil_1_20210719

    Let’s get moving and hit the trails!

    Register now for the County's next 5K Trail Run/Walk at Richmil Ranch on Aug. 14, celebrating Open Spaces, fitness, and our thriving local trail system Additional Info...
/CivicAlerts.aspx

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_5K_Richmil_1_20210719

    Let’s get moving and hit the trails!

    Register now for the County's next 5K Trail Run/Walk at Richmil Ranch on Aug. 14, celebrating Open Spaces, fitness, and our thriving local trail system Additional Info...
  2. SMP_CP_Agricultural_Bio_20210714

    Agricultural biodiversity open house at 17 Mile House Farm Park

    On Aug. 7, learn how the diversity of crops and their wild relatives, trees, animals and other species all contribute to the food we eat Read on...
  3. SMP_CP_Convo_Commissioners_OpenSpace_FNL_20210714

    Conversations with Commissioners focus on Open Space Sales and Use Tax

    The Open Space Sales and Use Tax will soon be up for reauthorization by our voters. What does that mean for you and your family? Read on...
  1. pic_CP_master_plan_cover

    Arapahoe County Open Spaces Master Plan now available

    Seeks to support County assets and create a sustainable future for program Read on...
  2. SMP_CP_Open_Spaces_Survey_2021

    Polling shows support for Arapahoe County Open Spaces tax reauthorization

    Existing tax is set to expire in 2023 Read on...
  3. pic_CSU_community_survey

    Arapahoe County CSU Extension launches community needs assessment survey

    Deadline is June 27 Read on...
View All News
/CivicAlerts.aspx
  1. Calendar

August 2021

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  1. Sat Aug. 14

    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

  2. Mon Aug. 23

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

  3. Sat Oct. 9

    5K Trail Walk/Run Series Event details and tickets sales available March 8
    Read More

  1. Sat Oct. 23

    Treat Street at the Arapahoe County Scaregrounds Spooktacular Halloween celebration for kids and families. October 23, 2021 Details and ticket sales available closer to event date
    Read More

  2. Mon Oct. 25

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

  3. Sat Dec. 4

    Board & Barrel Snowboard rail jam, live bands and adult libations. December 4, 2021 Details and ticket sales available closer to event date
    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

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