ALL US AND CANADA CAMPGROUNDS LOCATOR: STATE PARKS NATIONAL PARKS FORESTS MORE california oregon washington new york pennsylvania more
I found a couple errors in the data as I worked it up and sent corrections to the site owner. Apparently the guy (former engineer?) pictured on the site passed away 5-6? years ago. He built the site as a project during his retirement. I swapped a couple emails with his son. He said he's continuing to let the site run as is, but didn't know how long that would continue. I do remember I ran across a similar, commercial website that offers basically what this site does with a few more bells and whistles..but you need to subscribe to access it. I was really surprised he offered the base data as a download...very unusual in the non-public large-data world.
Just a few campgrounds available
. A bit more useful once you zoom in.