MacDonald PassMacDonald Pass, el., (also known as McDonald Pass) is a mountain pass on the continental divide west of Helena, Montana that is traversed by U.S. Route 12. The pass is one of three passes (MacDonald, Mullan and Priest) used in the 1870s-80s for travel between Helena and Deer Lodge, Montana over the (...)1935 Helena earthquakeThe 1935 Helena earthquake occurred at in Montana, with an epicenter near Helena. It had a magnitude of 6.2 on the surface wave magnitude scale and a maximum perceived intensity of VIII (Severe) on the Mercalli intensity scale (...) |
