Today was Martin Luther King day. I had the day off of work. So I slept in and then I got ready, packed my gear and headed back out to the bison site. It was bright and sunny, but 40 degrees with the wind blowing hard. Thankfully I would be down in the creek and the wind would not be much of an issue. There were a few more exposed bones I wanted to collect. One exposed bone was long and thin. I thought it was part of a thoracic vertebra. Just to the right of it was the edge of a very wide a