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In observation of the Juneteenth Day holiday, all County offices will be closed on Friday, June 19, 2026. Offices will reopen for regular hours on Monday, June 22. Many County services are available 24/7 on our Online Services webpage.

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Rueter-Hess Recreation
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Rueter-Hess Recreation

About Rueter-Hess Recreation

While the reservoir is, first and foremost, a key piece of the region’s drinking water supply, its 9,000-year history and rugged landscape make it a destination for outdoor activity year-round. During the reservoir’s construction, which was completed in 2012, several cultural and archeological artifacts were discovered, making the protection of several sensitive areas a top priority while planning recreation activities.  To view meeting agendas and minutes click here. 

Rueter-Hess Recreation Advisory Board (RAB) 

The RAB is a six-member regional collaboration charged with planning recreation activities at the reservoir. The Authority includes Parker Water & Sanitation District, the Town of Castle Rock, the Town of Parker, the City of Castle Pines, the City of Lone Tree, and Douglas County.  

At the direction of this authority, Douglas County will directly manage day-to-day activities and recreation opportunities at the reservoir starting in 2023. Scroll down for current recreation opportunities, including the Incline Challenge and Paddle Days.  

Rueter-Hess Recreation Planning

The first phase of the trails and incline challenge was completed in November 2020.  The Towns of Castle Rock and Parker, Douglas County, and the Cities of Lone Tree and Castle Pines committed to creating a partnership that will continue to add to the future phases of recreation activity.

The RHAB continues to work on funding, budgeting, staffing, management and phasing of future projects.

Additional Information and Resources

Rueter-Hess Reservoir is an invaluable water resource for Parker Water & Sanitation District, partner districts, the residents of Douglas County and people of the greater Colorado Front Range. 

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