The morning started off bright and sunny, and we began preparing to make a top jacket for the scapula shown above (with Amy serving as a scale). After a few hours we had undercut the bone enough to start jacketing:

Then black clouds started rolling in around 11:00 am (in spite of a forecast of sunny skies), and we had to rush to finish the jacket and cover the site before the rain arrived. We just made it, with the rain starting as we drove away from the site.

With the afternoon a wash, we drove up Shell Canyon into the Bighorn Mountains, which were still snow covered (in fact, we drove through a snowstorm on the way up).

One of the geologic highlights of this drive is the Shell Monocline, a large fold which is cut through by the Shell Creek Canyon.

Looking down the canyon reveals the bright red Chugwater Formation, which is Triassic in age. In the distance is the Bighorn Basin, where our digsite is located.