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Year-round adventure at Philip S. Miller Park

The 230-acre Philip S. Miller Park in Castle Rock is scheduled to open phase one in November and will eventually have many indoor/outdoor amenities, including a year-round ski/snowboard slope, zip line, pool, athletic fields, batting cages, hiking/biking trails, themed playgrounds, and more.

By Elizabeth Wood West; renderings provided by The Town of Castle Rock; image inhanced by Tim Gamble

In fewer than six months, The Town of Castle Rock (Town) will celebrate the grand opening of its largest park ever to be built. After breaking ground a little more than a year ago, construction is progressing well for phase one of the 230-acre Philip S. Miller Park, a one-of-a-kind indoor/outdoor recreational project that will have something for everyone. The park is located at 1375 West Plum Creek Parkway, west of I-25 in Castle Rock.

Phase one of the park will feature a 65,000- square-foot fieldhouse facility, which will house an indoor leisure pool and four-lane lap pool, along with a kiddie swim area, waterslide, and vortex whirlpool. Also included will be a 3,000-square-foot indoor play structure, a 5,000-square-foot trampoline area, and full-sized and half-sized synthetic turf athletic fields with drop down batting cages.

Phase one’s outdoor features will include a lighted synthetic turf athletic field, more than six miles of natural surface hiking/biking trails, picnic pavilions, an outdoor kid’s adventure playground, a built-in challenge staircase, parking, landscaping, and other infrastructure. However, the most exciting and anticipated elements for the park will be the year-round outdoor ski/snowboard (snowflex) slope and the zip line.

According to Jeff Brauer, assistant director of parks and recreation for the Town, Weston Solutions and Royal Gorge Zip Lines signed letters of intent (LOI) with Town officials in February. “The LOI’s authorize an exclusive evaluation period during which time the private parties will perform their due diligence to research the business feasibility at Philip S. Miller Park. Due to the complexity of the proposals, each LOI has a different time frame. The Royal Gorge Zip Lines LOI is based on a six-month time frame with reviews scheduled every two months. The Weston Solutions LOI is based on a two-year time frame with reviews every six months.

When either business believes that it has a plan to move forward for implementation, it can request that Town Council consider a development agreement or lease,” said Brauer.

According to Town officials, future phases of the park could include traditional play and athletic areas, an outdoor amphitheater, pond, indoor event space, adventure playground, and more. The overall completion of the park may cost close to $30 million dollars in public and private funds, which is why the project is being built in phases over the next ten years or more.

For further information, call 303-814-7458 or visit

Conceptual renderings of a multi-purpose athletic field and an indoor fieldhouse are a few of the images that capture the indoor and outdoor adventure concept.



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