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Comments - Prepared by the Snake River Expedition part of the U.S. Geological Survey of the Territories -- includes headwaters of Yellowstone and Madison Rivers

Year - c. 1870

Author - V. F. Hayden & G.R. Bechler

Original Size - 11 x 11

Print Sizes-
Small - 18 x 18
Medium - 24 x 24
Large - 30 x 30
X-Large -
2X-Large -

Academic Title - Map of the Sources of the Snake River with its Tributaries