The Cretaceous-Paleogene Boundary Deposit is an impact-induced sedimentary deposit across the Gulf of Mexico basin, deposited due to the catastrophic effects of the Chicxulub Impact. The purpose of this project was to determine what the lithology and sedimentology evidence found in the Justiss Louisiana Central IPNH No. 2 well core from LaSalle Parish, Louisiana, tells us about the depositional history of the end-Cretaceous deposit and how the formation of this deposit was influenced by the effects of the Chicxulub Impact over 1000 km to the south. Project objectives were to characterize the end-Cretaceous sediments found in LaSalle Parish, Louisiana, to determine their depositional history as it relates to the Chicxulub Impact in Yucatan, Mexico, and to relate these onshore sediments to the basin-wide Cretaceous-Paleogene Boundary Deposit. A full description of the core was made and 35 thin sections from throughout the core were created and analyzed. Sedimentology evidence suggests that the end-Cretaceous chalk was deposited by seismically-induced mass wasting and later tsunami activity as a direct result of the Chicxulub Impact, and that the previously-proposed thickness of the Cretaceous-Paleogene Boundary Deposit may be overestimated.