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10 May 2018
Last Stand, by Michael Punke
A reader of this blog recently recommended Michael Punke’s Last Stand. I thoroughly enjoyed his novel The Revenant, and so last week I started the audiobook version of the nonfictional Last Stand (2007). Last Stand is subtitled “George Bird Grinnell, the Battle to Save the Buffalo, and the Birth of the New West.” Prior to reading it, I knew little of Grinnell, save that he was a conservationist, and that he …
1 April 2014
Lost in My Own Backyard, by Tim Cahill
On Saturday of this past weekend, I led a field trip to Sideling Hill and Paw Paw Tunnel, and on the (1.5+.75+1.5=) 3.75 total hours of driving, I listened to the audio book version of Tim Cahill’s short book on traveling around in Yellowstone National Park. It’s a fun little book, but I wished it was longer. I was able to consume the whole book in a single day’s driving. …
28 August 2013
Guest post: The Huckleberry Ridge Tuff in the greater Yellowstone area
This is the third of several guest posts that will appear here this week, all written by students who participated in this past summer’s Regional Field Geology of the Northern Rocky Mountains course. by Matthew Mann University of Virginia The Huckleberry Ridge Tuff is a 2.1 Ma tuff deposit that is centrally located in Yellowstone (Figure 1), but can be found throughout much of the United States (Figure 2). The …
25 June 2012
Leopard rock
Callan shares some photos of “leopard rock” (porphyritic mafic dikes) seen along the Beartooth Highway, northeast of Yellowstone National Park.
20 June 2012
Pebble Creek memories
This summer is the first summer in half a decade that I won’t be spending time camping at Pebble Creek campground, in the Lamar Valley of northeastern Yellowstone (“America’s Serengeti”). While I’m very excited to be nesting and exploring my new home in the Fort Valley, it does make me a bit wistful to think I won’t be waking up to see this lovely sight this year: That’s morning light …
5 July 2011
Varves from Yellowstone Lake
The other day, driving south through Yellowstone on our way to the Tetons, I stopped to give my students the obligatory look over Yellowstone Lake’s West Thumb, looking east towards the snowcapped Absaroka Range in the distance. But in addition to a lovely view and a few birds, we found something really cool… Those are varves, seasonally-laminated couplets of sediment (light = summer; dark = winter) that are made of …
Callan Bentley is Associate Professor of Geology at Piedmont Virginia Community College in Charlottesville, Virginia. He is a Fellow of the Geological Society of America. For his work on this blog, the National Association of Geoscience Teachers recognized him with the James Shea Award. He has also won the Outstanding Faculty Award from the State Council on Higher Education in Virginia, and the Biggs Award for Excellence in Geoscience Teaching from the Geoscience Education Division of the Geological Society of America. In previous years, Callan served as a contributing editor at EARTH magazine, President of the Geological Society of Washington and President the Geo2YC division of NAGT.