Map no. 4 from the valley of the mud lakes to the Pacific Ocean: from explorations and surveys made under the direction of the Hon. Jefferson Davis, Secretary of War; by Capt. E.G. Beckwith, 3d. Artillery; F.W. Egloffstein, topographer for the route.; Explorations and surveys for a rail road route from the Mississippi River to the Pacific Ocean. Maps University Of Michigan Full Details

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