I think gelogy is nifty so I created some maps that lists the various cool places that geologist bloggers have written about.
Disclaimer #1: I'm not affliated with writers of the blogs. They did all the traveling and writing; I did all the content borrowing to make the maps.
Disclaimer #2: I got the latitude and longitude for each marker by doing a search for each place name in Google maps. I have no idea if those coordinates are right.
Disclaimer #3: I am not that dude in the banner photo. I took that photo at Valley of Fire State Park in Nevada.