Lathrop State Park Access provides entry to Colorado's first state park near Walsenburg, featuring two lakes (Martin Lake and Horseshoe Lake) with boat ramps, a visitor center, and 103 campsites.

Martin Lake's southwest boat ramp and an ADA-accessible canoe/kayak launch on Horseshoe Lake's south side offer water access for boating, fishing, and paddling. A daily vehicle pass ($10) is required for entry, and the park is open 5 a. m. to 10 p. m. daily.