Seaman Reservoir

The Gateway Natural Area is located 15 miles northwest of Fort Collins, Colorado. Along CO-14, it is five miles west of where CO-14 breaks off from US-287. It is managed by the City of Fort Collins which charges the following parking fees from March 1st to November 30th: $5/day, $30/year, $25/subsequent years, $10/year for handicap parking, and $60/year for vehicles with eight or more people.

The parking lot has restrooms and free pet waste bags but no water. Hiking, mountain biking (although limited in scope), nordic walking, walking leashed dogs, and fishing are allowed in the park. Campers and hunters are allowed to pass through the park but not allowed to do either inside of it. Cell phone service was weak.

This reservoir is primarily known for its access to good cliff jumping during the summer.