Gallatin Range

The Gallatin Range is a mountain range of the Rocky Mountains, located in the U.S. states of Montana and Wyoming. It includes more than 10 mountains over 10000 ft. The highest peak in the range is Electric Peak at 10969 ft.

The Gallatin Range was named after Albert Gallatin, the longest-serving US Secretary of the Treasury. The range extends 75 mi north to south and averages 20 mi in width.

Geography
The southernmost peaks of the range are in the northwestern section of Yellowstone National Park. However, the majority of the range is in Gallatin National Forest. The Yellowstone River flows north on the eastern flank of the range. The Madison Range parallels the Gallatins to the west. The northern end of the range is near Livingston, Montana and Bozeman Pass separates the Gallatins from the Bridger Mountains to the north.

The range is an integral part of the Greater Yellowstone Ecosystem and has grizzly bears, wolves and other threatened and endangered species also found in Yellowstone National Park.

Gallatin Petrified Forest
Within the Gallatin Range, the Gallatin Petrified Forest is one of the largest petrified forests of the Eocene Epoch. The petrified wood that comprise it consist of the mineralized fossils of a mixture of transported logs and in place (in situ) wooden tree trunks rooted. The in place tree trunks are rooted in moderately developed fossil soils, (paleosols). The petrified logs, stumps, and trunks found in the Gallatin Range were buried by volcanic lahars. The lahar deposits sometimes have been reworked and redeposited by small streams. These sediments accumulated approximately 50 million year ago. The U.S. Forest Service has a 2-mile (3.2 km) long interpretive trail which details the petrified trees.

In regard to these fossil forests and other fossils, collecting of fossils in Yellowstone National Park is illegal. In addition, visitors should stay on marked and maintained trails.