DILLON, Mont. — Historians have largely focused on the flora and fauna Lewis and Clark documented in their push to the Pacific Ocean 200 years ago. But to really understand the pair’s journey, two ...

Dinosaurs of Montana is a book co-authored by Jack Horner and geologist Ray Rogers, published bythe Bureau of Mines and ...

Petr Yakovlev, a geologist with the Montana Bureau of Mines and Geology, looks at a map of the area while standing on Stemple Pass Road Thursday near the epicenter of the early-morning earthquake.

DILLON — Rob Thomas, professor of geology at the University of Montana-Western, spends a lot of time studying the history of rocks. This month, Thomas will make some history of his own. He is slated ...

MISSOULA, Mont. — Montana Tech will host the official launch of "Dinosaurs of Montana" on Dec. 16, 2025, at 6:30 p.m. in the Montana Tech Library Auditorium, featuring authors Jack Horner and Raymond ...

We begin a three-part interview this morning with Montana Western Regents Geology Professor Rob Thomas. He and Donald Hyndman recently finished the 2nd edition of Roadside Geology of Montana. Ford ...

MISSOULA, Mont. — Lewis and Clark Caverns State Park’s speaker series is covering cave geology, birds and skulls June 10, 11 and 13. Stuart Parker will discuss mountain building that happened in the ...

HELENA - First Lady Nancy Schweitzer said her father, a geologist, used to explain the state's geology to the rest of the family when they traveled. The family kept a copy of the book "Roadside ...

The Yellowstone Valley, between the Gallatin and Beartooth ranges in southern Montana, is the easternmost of the Tertiary basins characteristic of the Northern Rockies. It is a structural basin ...

The Gardiner thrust fault has been mapped in detail from the west side of Cinnabar Mountain, Montana, where it appears from under a cover of Tertiary volcanics, southeastward to a point 3 miles east ...

During the coming summer Professor J. E. Wolff and Dr. G. R. Mansfield, of the Geological Department, intend to conduct a course in the form of a field expedition in the Rocky Mountains of southern ...

MISSOULA — The earthquake south of Lincoln that shook people from Spokane to Billings occurred along a fault not previously mapped by seismologists, which is not surprising in a region less studied ...