Terrible Mountain is a summit in Windsor County, Vermont, in the United States.

[1] With an elevation of 2,882 feet (878 m), Terrible Mountain is the 214th highest summit in the state of Vermont.

Terrible Mountain was likely so named by early settlers due to its terrain.

On March 19, 1968, a Beechcroft G18S crashed into Terrible Mountain, killing all 7 people on board, 2 pilots and 5 passengers.

[3] The passengers were executives from the Jones and Lamson Company based in Springfield, VT[4] and were flying on a private flight from Bridgeport, CT to Springfield, VT.[5] The pilot had knowingly attempted to fly through foggy conditions with faulty instrumentation.