Antero Reservoir, located near Hartsel, Colorado, is a premier recreation area in South Park managed by Denver Water. Known for its world-class trout fishing, the reservoir is a popular destination for anglers year-round, offering lake, stream, and ice fishing. In addition to fishing, visitors can enjoy motorboating, sailboating, canoeing, kayaking, camping, and picnicking, all while taking in the stunning views and abundant wildlife.

The name ‘Antero’ is derived from the Spanish word for ‘first,’ as it was the first dam built on the South Platte River near its origin. Constructed in 1909, the Antero Dam is an earth-fill dam, and geologists believe the reservoir occupies the site of a former lakebed, no more than 300 years old, with Green Lake submerged beneath its waters. Open 24 hours a day, 365 days a year, Antero Reservoir is a serene retreat and a must-visit destination for outdoor enthusiasts exploring South Park’s natural beauty.