A short drive from Las Cruces in southern New Mexico, Leasburg Dam State Park is one of those low-key spots that delivers far more than its size suggests. Built around a diversion dam dating to 1908 and designated a state park in 1971, it sits at about 3,962 feet in Radium Springs, where desert scrub, cactus gardens and a mountain backdrop meet the Rio Grande.
The park is compact — just 2.25 miles of hiking and mountain-biking trails — but it packs in variety. A short 0.16-mile loop winds through a cactus garden with interpretive signs naming the native plants, and visitors report spring blooms and plenty of rabbits along the way. The 1.3-mile Upper and Lower Mogollon Trail loops through riverside habitat, and there's an ADA-accessible 0.34-mile Lower Mogollon Trail with a designated fishing platform.
Water is the draw here. When Rio Grande levels are high, you can swim (north day-use area only, and never within 150 feet of the dam), paddle a canoe or kayak — motorized boats are banned, and life jackets are required — or fish in the south day-use and trail area. Expect bass, catfish and panfish, with rainbow trout stocked by the state during cooler months. Anglers aged 12 and up need a New Mexico fishing license, available online.
Camping is a big part of the appeal. The Greasewood, Cholla Loop and Cactus Patch campgrounds offer 29 numbered sites for tents, RVs and trailers, most with water and electric hookups, plus two wheelchair-accessible sites, an RV dump station and vault toilets. Pets are welcome, including overnight. There's no primitive camping, and reservations can be made online. If you'd rather sleep indoors, Las Cruces has plenty of hotels half an hour away.
Beyond the trails and river, the park runs a visitor center with exhibits, an observatory, and bird and night-sky programs — fitting for a state famous for its dark skies. Birdwatchers can spot canyon towhees, rock wrens, black phoebes, woodpeckers, verdin and ducks, with October to April the prime birding window. Spring and fall are best for fishing.
Entry is cheap and the park opens daily from 6 a.m. to sundown. Its real value is as an add-on: White Sands National Park is close by, and free camping is available in the Organ Mountains for those wanting to stay in the area. For road-trippers crossing southern New Mexico — or anyone who wants a quiet river-side base with desert scenery — it's an easy, affordable detour that rarely feels crowded.