The Arapahoe County 5K Trail Run is Sept. 15!

A timed run along the Chery Creek Trail in Centennial. BBQ and live bluegrass at the finish line!

Meet our new Arapahoe County CSU Extension Director

Arapahoe County Open Spaces is thrilled to announce the appointment of new CSU Extension Director Dina Baker, following a four-month extensive search. Dina began at the County Aug. 8.

Dina will head the Arapahoe County CSU Extension division, overseeing ni...

High Line Canal trail underpass improvements underway

The High Line Canal Trail near Parker Road and E. Mississippi Ave. will be closed while crews install the permanent pedestrian railing along the trail on the south side of Parker Road. The closure will begin at 7 a.m. August 15 and run through 7 p.m. Augu...

Wagons West—a Musical Tribute at the 17 Mile House Farm Park

Drop by 17 Mile House Farm Park to enjoy the musical program Wagons West, featuring pastimes from the 1800s. Suzie and Gary make history come alive with their songs and stories of Colorado pioneers, Native Americans, gold miners, cowboys and more. The son...

Enter your best work in Public Competitions at the Arapahoe County Fair

Enter your creations in four categories: Culinary Arts, Visual Arts, Fiber Arts, and Skilled Arts. Earn ribbons (and bragging rights!) from a panel of expert judges.

Arapahoe County CSU Extension wins regional award for Urban Ranchers Camp

Demonstrating excellence in animal science programming 

The Arapahoe County CSU Extension 4-H team in June received a Western Regional Award for Excellence in Animal Science Programming, for the Urban Ranchers Day Camp program. The team will be re...

Explore YOUR outdoors at the 17 Mile House Farm Park

Drop by 17 Mile House Farm Park and experience outdoors at the farm with CSU Extension 4-H program specialists. They will introduce youth to urban wildlife, trees, and nature around the 17 Mile House. Featured activity: see and feel animal skins and skull...

Bike to Work Day is June 22

It’s a great day to hit the trails and try commuting to work by bike! Stop by our stations for breakfast burritos and local pastries, updated trail maps, cool swag, and more. Brought to you in partnership with the City of Centennial, Denver Sout...

Wool Spinning at the 17 Mile House Farm Park

Drop by 17 Mile House Farm Park and discover how animal wool is spun into the sweaters we wear. Featured activity: try wool carding by hand and dye your own sheep’s wool! We will also offer small-group tours of the historic 17 Mile House and bar...

Cheyenne-Arapaho Park expansion project to benefit community

Construction will begin mid-May 2022 on a project to renovate and activate the west side of Cheyenne-Arapaho Park in the Four Square Mile area of unincorporated Arapahoe County. The 4.6-acre park located at 9200 E. Iowa Ave. approximately one-half mile no...

Work begins on Parker Road Overpass for High Plains Trail

Arapahoe County Open Spaces, Public Works & Development, and Jalisco International, Inc. will start construction of the Parker Road Overpass for High Plains Trail on Monday, April 25. 

The Open Spaces project will improve regional trail connec...

How to protect your flock from Avian Influenza

Have backyard chickens? Please use the following resources for information regarding the current Highly Pathogenic Avian Influenza (HPAI) outbreak.

Call your veterinarian if your flock shows signs of influenza or you suspect exposure.

No Vet? You can also c...

Water bugs at the 17 Mile House Farm Park

Drop by 17 Mile House Farm Park and learn about water critters living in Cherry Creek from City & County of Denver Environmental Educator Donny Roush. Take a short, guided nature walk with Casey Davenhill from Cherry Creek Stewardship Partners. Featur...

Meet the beekeepers at the 17 Mile House Farm Park

Drop by 17 Mile House Farm Park and learn the basics of honeybees, beekeeping, and bee-friendly gardens from the farm’s apiarists Joe and Debbie Komperda. Featured activity: make your own beeswax candle!

Saturday, April 9, 20229 a.m.–12...

What's the BUZZ with bees in Colorado?

What's the BUZZ with bees in Colorado? These little pollinators in our backyard impact us more than you would think. With "A Beginner's Field Guide to Identifying Bees" you can learn how to identify bees in Colorful Colorado!

Now open: New trail underpass at Parker and Mississippi

The High Line Canal Trail Underpass at Parker Road and Mississippi Avenue is now open to the public! This partnership with Arapahoe County Open Spaces and the City and County of Denver’s Department of Transportation & Infrastructure built this new reg...

Protecting the High Line Canal: Our Progress, Our Future

This week, Arapahoe County celebrates our partners and the launch of the Canal Collaborative (formerly called the High Line Canal Working Group). The new structure for operations and management of the Canal will help ensure this regional treasure is prote...

17 Mile House historian brings her own personal connection to its local history

Arapahoe County staff member Karen Sear is interviewed in the latest segment of Connected Colorado, about the historic 17 Mile House Farm Park in Centennial and her own personal connection to its local history. Watch now.

Watch Now...

Planning for Arcadia Park in the Four Square Mile neighborhood is underway

Planning is underway for a new neighborhood park within the future multi-family and paired-home housing community being planned for the Potter's House Church parcel at 9495 E. Florida Ave. The dedicated public park will provide Four Square Mile residents ...

Best wishes to CSU Extension Director Tim Aston

Congratulations to Arapahoe County CSU Extension Director Tim Aston! After 9 years of service with the County, Tim will retire at the end of December 2021. Horticulture Agent Lisa Mason has been named Interim Director. Lisa has been with Arapahoe County C...

CSU Extension 4-H Program brings home eight state and regional awards

Demonstrating leadership in innovative programming throughout the pandemic 

The Arapahoe County CSU Extension 4-H team was recognized with eight awards at the annual Colorado Association of Extension 4-H Agents Award Banquet Nov. 9, including a sp...

Kiowa Creek North Open Space Master Planning process is underway

County seeks community input on the future of the 265-acre property

Arapahoe County is seeking public feedback for a 265-acre property located just south of the Town of Bennett. The Kiowa Creek North site was purchased by the County in 2009, specifically f...

Tickets on sale now for Board & Barrel!

Arapahoe County presents a unique wintertime event featuring a snowboard rail jam, premium barrel-aged libations, s’mores, and great vendors and vibes.

Who: Arapahoe County Fairgrounds&nbs...

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 ??

Arapahoe County Commissioners today celebrated the distribution of more than $21 million to cities, towns and partner agencies ...

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!

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

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

Arapahoe County Open Spaces is pumped up and ready to hand out breakfast burritos from Little Anita’s, bike bells you’ll actually want to use, coffee, snacks, and copies of the 2021 Explore Arapahoe Bike and Trails Ma...

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.

Honeybees and our Ecosystem at 17 Mile House Farm Park

Drop by and learn why honeybees and pollination are important for our food supply, from the farm’s apiarists Joe and Debbie Komperda. Featuring fun, hands-on learning activities for youth.

This is a FREE event, but registration is required.Learn ...

Herb harvest open house at 17 Mile House Farm Park

Drop by and learn the basics of growing, harvesting and preserving herbs, including lavender, basil and rosemary. Get recipes and discover how to make herbed vinaigrette and prepare lavender for baking. Featuring fun, hands-on learning activities for yout...