La Pine State Park
In central Oregon, a few miles off of US-97, is La Pine State Park. The Deschutes River runs through it, and it has the largest Ponderosa Pine in the state. There are over 100 full-hookup campsites, and some cabins that can be rented. Campsite rates are quite reasonable at $22/night. ($4 cheaper October-May.) I stayed at site 76 in the middle loop, one of the pull-through sites. (The picture has a clue to a future blog article.) Some of the sites have the river behind them through some trees, but they all seem to be back-in sites. Based on how full it was mid-week in late September with rain, I expect it to be full most of the summer so reservations may be needed. The Verizon signal was good in my campsite.
There are several hiking trails in the park, including a nature trail along the river that has both ends in the campground.