Getting your player ready...
. It may take two weeks to determine what caused eight freight-train cars to derail near the entrance to Coal Creek Canyon, a spokesman for Union Pacific said Friday.
Union Pacific investigators will conduct metallurgy tests and simulations as they look for answers, spokesman Mark Davis said.
The 94-car freight train was headed to Salt Lake City when it derailed about 11:40 a.m. Thursday. No one was injured.
