Castlewood Canyon State Park is a Colorado state park near Franktown, Colorado. The park retains a unique part of Colorado's history, the remains of Castlewood Canyon Dam. Visitors can still see the remnants and damage from that dam which burst in 1933. The event sent a 15ft wave of water all the way to downtown Denver resulting in a flood. Also contained within the park is the historic Cherry Creek Bridge.RecreationThis park hosts a multitude of hiking/running trails, handicapped access trails and rock climbing opportunities, as well as a nature preservation area on the eastern side that is home to wildlife and interesting geological features. Located within the northernmost extension of the Black Forest, Castle Wood Canyon encompasses 2136acre with elevations ranging from 6,200 to 6600ft. Many urban dwellers come for the picnic opportunity away from the city (group picnic facilities can be reserved), others visit the park because of the unusual geology, particularly the caprock features.Wildlife, ecology, and geographyAmong the many species living in the park are coyote, cottontail rabbit, red fox, black bear, prairie rattlesnake, mountain lion, meadow jumping mouse, turkey vulture, golden eagle, prairie falcon, virile crayfish, Woodhouse's toad and the northern leopard frog.