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  1. Trails
  2. Parks
  3. Open Spaces
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  1. Arapahoe County Open Spaces

Master Plan
Fairgrounds
Trails Map
County Fair
Grants

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. pic_CP_shareback

    Arapahoe County awards Open Space funds at annual Shareback & Grant Awards Ceremony

    $16.6 million distributed to agency partners and $4.45?million in grants awarded Read on...
  2. pic_CP_AC_bike_and_trail_map_2021

    Explore Arapahoe County with our updated Bike and Trail map

    This map highlights our vast network of bike and walking trails which are yours to enjoy! Additional Info...
  3. SMP_CP_5K_HighLine_Canal_Pic_2_2021

    Don’t miss our last 5K Trail Walk/Run of 2021 on Oct. 9!

    The course begins and ends at our newest trailhead and park, Long’s Pine Grove, along the High Line Canal Additional Info...
  4. Fair_Spotlight_Treat-Street_20210826

    Treat Street at the Arapahoe County Scaregrounds

    On Saturday, Oct. 23, come out for a safe day of trick-or-treating and spooktacular family fun. Music, activities, costume contests and more! Wear a costume and get in FREE. Additional Info...
  5. SMP_CP_Open_Spaces_tax_reauthorization

    County commissioners lead Open Spaces reauthorization discussions with residents, stakeholders

    Read on...
/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. pic_CP_shareback

    Arapahoe County awards Open Space funds at annual Shareback & Grant Awards Ceremony

    $16.6 million distributed to agency partners and $4.45?million in grants awarded Read on...
  2. pic_CP_AC_bike_and_trail_map_2021

    Explore Arapahoe County with our updated Bike and Trail map

    This map highlights our vast network of bike and walking trails which are yours to enjoy! Additional Info...
  3. SMP_CP_5K_HighLine_Canal_Pic_2_2021

    Don’t miss our last 5K Trail Walk/Run of 2021 on Oct. 9!

    The course begins and ends at our newest trailhead and park, Long’s Pine Grove, along the High Line Canal Additional Info...
  1. SMP_CP_BTWD_20210831

    Get back in the saddle for the 2021 Bike to Work Day on Sept. 22

    Visit our bike station at the Arapahoe Road Trailhead along the Cherry Creek Trail to grab a breakfast burrito, our new bike and trails map, and more fun stuff! Read on...
  2. Fair_Spotlight_Treat-Street_20210826

    Treat Street at the Arapahoe County Scaregrounds

    On Saturday, Oct. 23, come out for a safe day of trick-or-treating and spooktacular family fun. Music, activities, costume contests and more! Wear a costume and get in FREE. Additional Info...
  3. SMP_CP_17MH_Honeybees_20210825

    Honeybees and our Ecosystem at 17 Mile House Farm Park

    On Sept. 11, learn why honeybees and pollination are important for our food supply Read on...
View All News
/CivicAlerts.aspx
  1. Calendar

September 2021

Sun Mon Tue Wed Thu Fri Sat
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26 27 28 29 30 1 2

  1. Sat Oct. 9

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

  2. 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

  3. Mon Oct. 25

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

  1. 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

  2. Mon Dec. 6

    Open Space and Trails Advisory Board (OSTAB) Monthly Meeting
    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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