(US Geological) Gray's Geological Map of the United States - World/Oceans This map for the city

This map for the city of St

5 X 21 (inches)

Throughout the continental portions of the map are 41 different insets for islands

West of the Platte are few street names we recognize today

such as its roads

(US Geological) Gray's Geological Map of the United States - World/Oceans This map for the cityGray's Geological Map of the United States Charles Hitchcock was the son of Edward Hitchcock a distinguished geologist and educator, and Charles continued the legacy. Working in various capacities as state geologist, he also taught at Dartmouth and was later the founder of the Geological Society of America. This map is Charles basic geological map for the US and was published by Gray with hand color identifying nine different types of formations.