Somewhere I have a photo of Upheaval Dome from the air. It is very clear that it is an impact crater. There are several concentric rings piled up around the crater. I also discussed this with a friend of mine who is the past dean of the Geology school at U of Idaho and past president of the US Geological group (not the correct name, but you get the idea.) She was emphatic that Upheaval Dome is an impact crater. I'll try to find the photo. Thanks for posting, Joan. ________________________________ From: "jcarman6@q.com" <jcarman6@q.com> To: Utah Astronomy <utah-astronomy@mailman.xmission.com> Sent: Thursday, March 14, 2013 11:02 PM Subject: [Utah-astronomy] Barringer Was in Arizona this past weekend and took the opportunity to go to Barringer Meteor Crater located closer to Winslow, but way outside Flagstaff on highway 40. Some of the board members have been there. The crater is located on a high desert plain, elevation 6,000 feet (abt 2,000 meters). The plain is not totally flat, but slighly rolling mounds. Exit 233 is Meteor Crater Road and the crater itself is about 6 miles off of highway 40. Really in the middle of nowhere. All I could think about on those almost 6 miles was Wow, what low horizons - in all directions, the view at night must be spectactular. Then I went around a small mound and saw the outside of the crater rising 100+ feet from the plain floor. Just as if I was driving up to a crater on the moon. My jaw dropped. I took a few pictures and the link follows - Enjoy http://www.facebook.com/home.php?ref=home#!/media/set/?set=a.4605827825763.1... According to a map on the meteor crater website, there is a very old impact crater in south eastern Utah - looks like within the Capitol Reef boundaries. Anyone seen it? Also on the same map it shows a number of impact sites in the eastern U.S., but only a few in the western U.S. Anybody got a reason why?