This is Moabosaurus. This particular skeleton is at the BYU Museum of Paleontology.
Moabosaurus is a type of sauropod found in the Cedar Mountain Formation. As you can guess, this dinosaur was found near Moab, Utah. The quarry it was discovered in contained at least 18 individuals based on the number of braincases recovered.
Phylogenetic analyses in 2017 indicated that it was a basal titanosauriform macronarian neosauropod. However, a second study that year placed it in turisauria, a group outside of neosauropoda. In layman's terms, one group said it was more closely related to Camarasaurus
while the other said it was a more basal sauropod all together like Turiasaurus.