On Saturday, January 19, 2008, UPRR reported mudslides in a remote area approximately 50 miles north of Chemult, OR at approximate MP 561 and MP 551 between Chemult, OR and Eugene, OR. Further investigation of this event revealed that a single slide on the mountain crossed over the rail in several locations along this route between MP 551 and MP 565.

The track structure in this area switches back on itself as it climbs the grade, resulting in this single slide moving over the tracks at Frazier, MP 551, continuing northward through Fields, over the tracks at Wicopee, MP 561 and towards Heather MP 565.

Over the course of the next 36 hours, the mountain continued to move, with UPRR reporting the slide at Frazier at one fourth mile in length and over 10 feet deep. Other slide areas are reported at 15 feet over the rail. UPRR forces are in the process of digging roadway access to slide areas in this remote region. Due to continued movement on the mountain and concern over stability, UPRR sought the assistance of a geologist to provide advice on steps necessary to stabilize the mountain and restore rail access through the area.

Initial estimates for track opening on January 19 were 2 to 3 days. However, after forces were able to access the area, observe continued slide activity down the mountain and secure expert advice, on January 21, 2008 that initial track restoration estimate has changed to up to 2 - 3 weeks for resumption of normal rail service.