With time on our prospecting trip running out, we hit the hills early yesterday. The ridge we hiked down had some great exposure and the area turned out to be littered with fossil bone. Around every corner we found piles of Triceratops bone many of which had just been resting on the surface degrading for a long time. Sometimes I’d stumble across a nice bone on the surface, but a little digging into the hill revealed it was just a lone bone, resting out in the Montana sunlight.
Early in the morning I spotted a foot long thin ridge of bone protruding from a hillside well below where I was hiking. I made my way down to check it out and noticed the distinctive triangular bones on the margin of a frill just peeking out. Holding my breath a bit, I started peeling sediment off the bone, which continued improving in condition deeper into the hill. It was a good sign! Clearly there was a large portion of the frill diving into the overburden here. Since we only have a prospecting permit, and could never take out a whole Triceratops skull without an excavation permit, I chose to stop digging there, consolidate and cap what was exposed. It could be that this piece of frill is not attached to anything at all. OR it could be that the entire skull is waiting just beneath the mudstone layers of that hillside. We’ll only find out when we come back to excavate what we’ve found.
More hiking brought more sites, including these huge eroding bones on the top of a butte that could be spotted from 100 meters away. There were at least five bones exposed here and this is a site that will merit further excavating.
At then end of the ridge there were some beautiful views including a broken down cabin in the valley. But alas, this is clearly then end of this hike, time to head back to the hills behind to search for more bone.