Another large hole where the beds were exposed. Jim says excavations like this have occurred in several places.
Complete fossiliferous bed shown here, Jim exposed these for a photo in his paper, he says quite a bit has been removed from this site too.
The collecting area is on BLM and Winecup-Gambel Ranch property. It would sure be nice to know who has been collecting here, whether it is someone from an institution or commercial collectors. This seems to be a larger excavation than someone who is digging for reasonable and/or personal use would need to dig.