We stopped at Tonto National Monument knowing that both the lower and the upper cliff dwellings are not wheelchair accessible but we wanted to see the parts of the site that are accessible. The trail to the lower cliff dwelling is paved and only 1/2 mile long but steep with some steps. The more challenging trail to the upper cliff dwelling is 3 miles round trip and visitors must sign up for a guided tour. The visitor center parking lot has a nice view point which overlooks Theodore Roosevelt Lake. The visitor center has a few exhibits and is accessible.
We walked/rolled up the paved trail (going in the exit to avoid steps) for a little way. It’s very steep so we didn’t go far but the cacti were in bloom so it was a pretty walk.
The parking lot has three RV spaces for vehicles 30’ and under. Larger vehicles must stop at the picnic area which is about 1/2 mile before the visitor center lot. There isn’t a sidewalk or trail from the picnic area to the visitor center.