After years of collaboration, planning, and conservation efforts, Lost Canyon Ranch Open Space is now open to the public, providing residents and visitors with a rare opportunity to experience one of the most ecologically significant landscapes in the Castle Rock area.
The 681-acre property, located on the eastern edge of Castle Rock, was permanently protected in 2024 through a partnership among the Town of Castle Rock, Douglas County, Great Outdoors Colorado (GOCO), The Conservation Fund, and Douglas Land Conservancy (DLC). The acquisition represented the largest one-time open space purchase in Town history and ensured that this remarkable landscape would be preserved from future development while creating opportunities for public enjoyment and environmental education.
Lost Canyon Ranch is a landscape of rolling grasslands, ponderosa pine forests, dramatic canyon walls, wetlands, and Willow Creek riparian habitat. Located along the Palmer Divide, where Colorado’s plains and mountain ecosystems meet, the property supports exceptional biodiversity and serves as a critical link in more than 4,000 acres of connected protected habitat, including a trail connector to Castlewood Canyon State Park.
“A place like Lost Canyon is both beautiful and rare. That’s why DLC is so proud of the partnerships that led to the conservation of Lost Canyon, and of the ongoing work to bring this beauty to our shared community. This is what we’re passionate about,” said Todd Warnke, President of the Douglas Land Conservancy Board of Directors.
The opening of Lost Canyon Ranch fulfills a shared vision of balancing conservation with carefully managed public access. Extensive planning efforts helped shape a trail system designed to protect sensitive wildlife habitat, cultural resources, and the property’s unique natural features while providing opportunities for hiking, wildlife observation, photography, and quiet enjoyment of the outdoors.
To protect the property’s conservation values, Lost Canyon Ranch is managed as a hiking-only open space. Dogs and bicycles are not permitted on the property. These restrictions help minimize disturbance to wildlife, reduce impacts on sensitive habitats, and preserve the quiet character that makes the landscape so important for both animals and people. Visitors are encouraged to stay on designated trails, respect posted regulations, and help ensure the property remains a haven for wildlife for generations to come. See the trail map here.
As holder of the conservation easement, Douglas Land Conservancy continues to work closely with the Town of Castle Rock to ensure that future management and recreational use remain consistent with the property’s long-term conservation goals. The opening of Lost Canyon Ranch demonstrates how partnerships between local governments, conservation organizations, funding partners, and community members can create lasting benefits for both people and nature.
For the community, Lost Canyon Ranch offers something increasingly rare along Colorado’s Front Range: the chance to explore a largely undeveloped landscape rich in wildlife, scenic beauty, and natural history. For wildlife, it represents the permanent protection of critical habitat. And for the partners who worked to conserve it, the opening marks an important milestone in a shared commitment to preserving the natural character of Douglas County while creating meaningful outdoor experiences for future generations.