1913 George Geologic Map of Colorado

Geologic Map of Colorado. - Main View

1913 George Geologic Map of Colorado


An astoundingly-detailed large format geologic map of Colorado.


Geologic Map of Colorado.
  1913 (dated)     42 x 60 in (106.68 x 152.4 cm)     1 : 500000


This is a 1913 Russell D. George geologic map of Colorado. Seventy-three different color and pattern combinations highlight geologic formations across the state. The attention to detail is truly astounding, with the borders of the various geologic regions presenting an incredible level of precision. A legend, situated along the right border, identifies these formations and breaks them down into sedimentary, metamorphic, extrusive igneous, and intrusive igneous rock formations. Counties are illustrated, and several cities and towns are labeled. Colorado's rail network is illustrated in detail. The Chicago, Burlington, and Quincy Railroad and the Chicago, Union Pacific Railroad appear in northeastern Colorado. The Atchison, Topeka, and Santa Fe Railroad, the Colorado and Southern Railroad, and the Missouri Pacific Railroad all run through southeastern Colorado. Particular attention is paid to the Denver and Rio Grande Railroad's network, perhaps the most extensive in the state.
Publication History and Census
This map was compiled by Russell D. George, drafted by H. C. Woods, and lithographed by August Hoen in 1913. It is well represented institutionally, but it scarce on the private market.


Russell D. George (May 5, 1866 - January 2, 1955) was a geologist. Born in Claremont, Canada, George received his Bachelor of Arts degree from McMaster University in Toronto in 1897 followed by a Master of Arts in 1898. He became a member of the field staff of the Ontario Bureau of Mines in 1898, and not long after arrived in the United States after accepting a position as a Fellow in geology and an instructor in mineralogy at the University of Chicago, which he held until 1901. He then received a position with the United States Geological Survey in 1899. While at the University of Chicago, he had the titles of Instructor of Geology in 1900 and Assistant Professor in 1901. He also taught geology over the summers at the University of Chicago from 1900 until 1902. In 1902 he was a Professor of Geology at the State University of Iowa. From 1903 until 1934, George held the position of Head of the Department of Geology at the University of Colorado and was an Emeritus Professor from 1934 until his death. Her served as Colorado State Geologist from 1907 until 1928. He received his Ph.D. in 1923. He married Marcia Chipman (1880 - 1951) on June 4,l 1908. More by this mapmaker...

August Hoen and Company (fl. c. 1840 - 1981) was a Baltimore based engraving and lithography firm active in the middle part of the 19th century. A. Hoen & Co. was originally founded by Edward Weber under the name 'E. Weber & Company. Weber died in the early 1850s and his company was taken over by German immigrant August Hoen (18?? - 1886) and his brothers, Henry and Ernest Hoen. As general interest lithographers, the Hoen firm's corpus includes posters, cigar boxes, sheet music covers, and posters as well as maps. They are best known for their pioneering multi-color lithographic techniques. After the death of August Hoen, the business passed on to his son, Albert Hoen. Another son, Earnest A. Hoen, moved to Richmond, Virginia and opened a branch of the firm there where he was granted a charter to produce Civil War era Confederate Currency. Their contributions to the cartographic field are generally in association with engraving and printing work done for Jacob Monk and the U.S. Geological Survey. The Hoen family maintained an active interest in the firm for the next 100 years or so until it finally filed for bankruptcy in 1981. Learn More...


Very good. Dissected and mounted on linen in fifty (50) panels. Exhibits some light soiling. Blank on verso.


OCLC 1028739747.