Published since 1964, the Mountain Geologist is the quarterly journal of the Rocky Mountain Association of Geologists (RMAG). Issues are published in January, April, July and October of each year. The Mountain Geologist circulates to the 2200-plus members of the RMAG and about 200 university libraries and industrial associates.A regionally oriented peer-reviewed publication, the Mountain Geologist focuses on the geology of the Rocky Mountain area of the U.S. Topics from outside the region, however, are of interest to the readership when they bear on problems relating to those in Rocky Mountain geology. The range of topics presented in Mountain Geologist articles covers almost every sub-discipline in the geosciences: stratigraphy, paleontology, structural geology, mining and petroleum geology, hydrogeology, geophysics, and geochemistry.