Geological map of the United States (Hitchcock and Blake, 1872)

Title: Geological map of the United States compiled for the 9th census

Creator: Charles Henry Hitchcock [1836-1919] and William Phipps Blake [1826-1910]

Description: Geological map of the contiguous United States at a scale of 1:5,000,000

Date: 1872

Format: Geological map

Image reference: 07-86

Original size: 54 x 84 cm.

Recommend print size: Up to 40 x 27 inches (100 x 70 cm.)