Lake Mineral Wells State Park & Trailway is a state park located in Mineral Wells, Parker County, Texas. It includes Lake Mineral Wells, and is the only state park in Texas which protects part of the Western Cross Timbers and Mineral Wells Trailway. Also within the park is Penitentiary Hollow, a somewhat unusual geological feature which resembles a small canyon. It is a popular site for rock climbing, though the only type of climbing allowed is top-rope. The park also features over of hiking trails, of which are open to bicycles and horses. Campsites can be found by the small lake, and up on the higher areas of the park, as well.HistoryThe area that the park currently protects was, at one time, part of a testing range for Fort Wolters Military Reservation. Currently, if you go to the park, you can still find remnants of old bullets and shells, if you're lucky enough.Area AttractionsClose by attractions include: Fort Richardson State Park and Historic Site & Lost Creek Reservoir State TrailwayPossum Kingdom State ParkCleburne State ParkClark Gardens