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Northern Prairie Wildlife Research Center

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Presettlement Wildlife and Habitat of Montana:
An Overview

Annotation Of Expeditions And Individuals Recording Natural History Notes

DeLacy Expedition, 1863:

This expedition explored the upper south Snake River up to what was to become Yellowstone National Park. The expedition left from the Beaverhead Valley, crossed the continental Divide at the head of Red Rock Creek, and proceeded to the Snake River. They spent a considerable amount of time on the Firehole and Madison Rivers within the Park prospecting for gold. They then descended the Madison River and proceeded back to Virginia City. Although the purpose of the expedition was for gold exploration, some natural history notes were recorded by DeLacy in his journal. DeLacy went on to publish two early maps of Montana.

DeLacy, W.W.  1902.  A trip up the south Snake River in 1863.  In: 
     Contributions to the Historical Society of Montana, vol I, 2nd ed. 
     Independent Publishing Co. and Rocky Mountain Publishing Co., Helena, 

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