IDAHO Montana Map Mountains Rivers Counties Railroads 1910 Antique Engraved Map

This finely engraved 1910 antique map of Idaho and Montana presents a dramatic and highly detailed view of the northern Rocky Mountain region. Mountain ranges are rendered with rich shaded relief, while rivers, valleys, counties, railroads, and settlements are carefully delineated across the rugged landscape. The map clearly shows the geographic relationships between Idaho, Montana, Wyoming, the Dakotas, and Canada, reflecting the importance of transportation corridors, mining districts, and frontier development in the early twentieth century.

Published in 1910 and engraved by Emery Walker, a respected master engraver whose name appears in the plate margin, this map exemplifies the precision and clarity of professional atlas cartography of the period. The fine line work, legible lettering, and balanced composition demonstrate Walker’s craftsmanship and the high standards of official map engraving. Measuring approximately 11.5 x 16.5 inches, the map is blank on the reverse and retains its original center fold, as issued, making it an excellent collectible example of early American western cartography.