Camp Finder works really well for us. We have it on a tablet so it's easy to use and gives reviews, directions, etc.
We have used it for four years now. It used to be free, but may be a $20 download now. Well worth it.
When you find a list of parks, you can copy the address to Google Maps and get all of the Google help.
Tom & Jan ---- Westwing43 (RVM28)
2008 NEWMAR MOUNTAIN AIRE 4528
Pulling a 2014 CHEVY CAPTIVA