1873 Geological Map of the United States Compiled by C.H. Hitchcock and W.P. Blake

Size Guide

By: United States GPO

Date of Original: 1873 (Published) Washington

Original Size: 21.5 x 33.5 (54.4 cm x 85.1 cm)

This colorful fine print reproduction map of the United States was compiled by Professors C.H. Hitchcock and W.P. Blake. It is one of the most important early geological maps of the United States, one which would be copied by major commercial mapmakers for a number of years following its appearance.

In addition to depicting geological data, the map also includes state capitals, county towns, principal cities, military and wagon roads, arsenals and forts, creeks and rivers, and canals. Railway systems are clearly delineated. The geological data depicted by it is quite inclusive, covering the Cenozoic, Mesozoic, and Paleozoic periods. More specific geologic data is included in the legend, which is color-coded for ease of reading and interpreting the map. 

Inventory #10934

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About Our Reproductions
About Our Reproductions
- The product listed is a high resolution, printed reproduction of the original map. 
- The prints are of giclée quality. They are made using a twelve ink, color printer on  acid-free, archival paper. Colors are guaranteed to last without fading for over 100 years. 
Sizing Information
- The available size options are aimed to fit standard size frames. This will not apply for all maps and sizing options.
- The dimensions give are approximate and may vary by up to .5 inches.
- All of our maps will include an extra margin of 0.5 - 1 inch for matting purposes.
- We do not alter the ratio of H x W dimensions of the map as that would diminish the integrity of our reproduction's resemblance of the original work.
Paper Information 
- Our paper is referred to as a Premium Archival Matte (230 gsm). This heavyweight paper is smooth to the touch, neutral-white, acid-free for a longer print life and features an instant-dry coating that resists fingerprints and smudging.


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