Preliminary detrital zircon data for Upper Cretaceous to Paleocene strata of the Crazy Mountains Basin, Montana

This document includes sandstone provenance data for Upper Cretaceous to Paleocene strata preserved in the Crazy Mountains Basin of western Montana, USA. The dataset includes detrital zircon data for six samples from the Upper Cretaceous Hoppers Formation (1 sample), Upper Cretaceous Billman Creek Formation (1 sample), and Paleocene Fort Union Formation (4 samples). Detrital zircon data were acquired at the University of Arizona LaserChron Center in 2017.