Abandoned in several sections by the late 80's and early 90's, except for a segment here between Kersey and LaSalle, which still served the Monfort feedlot up until a decade ago.
Rumor has it some in UP management have since regretted abandoning the line since everything must go via Cheyenne and then south to get to Denver. This line also hosted the City of Denver and some fast piggyback freights, and even some steam excursions into the 80's. Also, one of the worse school bus grade crossing tragedies occurred outside of Lasalle in 1961 on this route.
Photo included of the memorial marker.
Source: Abandoned Rails