It appears that Fridays are all about Fossils here in the world of GeoBlogging. I had no idea, but it sounds like fun to me. Thanks to Silver Fox for the heads up! So, on short notice, I give you this:
A photo I took in Glacier National Park of Stromatolites has been published by the USGS! Check it out on the last page of "Lindsey, D.A., 2007, Precambrian Time—The Story of the Early Earth: U.S. Geological Survey Fact Sheet 2007-3004, 6 p." These stromatolites can seen if you hike the Highline Trail in the park. They are found within the Siyeh Formation (1.1 Ga) in the park, and are everywhere if you know what to look for. I could bore you with pictures for hours (just a small taste here), as they were one of the major focuses of my work in the park during the summer of 2005.