8 p.m. All highways and mountain passes have reopened. 6:19 p.m.: Interstate 70 eastbound has reopened to traffic at Exit 205, but westbound I-70 is closed at the Eisenhower-Johnson Memorial Tunnels.

The Mountain Pass rare earth mine in California is a significant world market player that produces 20% of global rare earth output. The facility is a primary supplier to fulfill surging demands across ...