Bison and Texas longhorns graze the paddocks at San Angelo State Park, close enough to the trail that you wait when they cross, then keep walking once the herd settles. O.C. Fisher Lake and the Concho River meet inside the park, so the same outing can run from those fences down to the shoreline. On the Dinosaur Trail, fossilized trackways are still in the rock, and that stretch is slower because you are looking at the ground.
The park is split into a North Unit and a South Unit. South Shore is the first night because it is closest to town, and the trail network starts from it the next morning.
South Shore camping is the pad you actually sleep on. Red Arroyo has water and electric hookups a campervan can use, on the park's campsites page. River Bend is tent-only and only reachable on foot, horseback, or bike. If you need more sleeping space than a van, look at RV rentals in San Angelo.
Spring and summer are busy, and the heat is why those hookups matter. Texas Parks and Wildlife recommends reservations before you arrive because the park often reaches capacity, as of September 2026.
Downtown, the Concho River Walk is the day you stay in town. It is a walking and biking path along the river, with parks, gardens, and an amphitheater. Abilene is the next city north.
South Llano River State Park at Junction
The South Llano at Junction is spring-fed and slow enough to tube, swim, and paddle without fighting the current. Multiple put-ins and take-outs sit along the river, so you can float a short stretch, climb out, and float again. A weekend here is that water, then camp, then the same river the next morning.
Four bird blinds sit in the bottoms for daytime watching. At dusk in season, hundreds of turkeys come into the river-bottom trees. Texas Parks and Wildlife's South Llano River page calls the park "home to one of the largest turkey roosts in Central Texas" and says most campsites have water and electric hookups.
Fall through winter, day use tightens around that roost. If you want a Hill Country base instead, start from Austin.
Caverns of Sonora
The tour at the Caverns of Sonora walks underground through flowstone and crystal rooms, then comes back up into daylight on a working ranch. That ranch is the overnight. Sonora is a separate drive south from San Angelo.
The operator's camping page lists RV sites with water and electricity, several of them pull-through. There is no dump station on site because of the cavern. West of San Angelo, Midland is the next campervan base.