This map, derived from Bonner's landmark map of Georgia redesigned as a geological map for publication with the book, is the earliest Marcou listing for Georgia. It was published locally from Savannah by W.T. Williams. In it Williams has identified nine geological types, each with distinctive hand coloring, to include Cretaceous, Tertiary, Marble, Coal, and more. Importantly, the large Gold Region is shown in the northern portion of the state. Northern Georgia and western Carolina were the site of the first American gold rush which started in the 1820s-30s. The U.S. Mint, established in 1835, is shown within the gold region next to Dalhonega in Lumpkin County.

The map also locates Elastic Sandstone to suggest the possible extent of Georgia’s diamond fields. Diamonds were first discovered in Georgia in the early 1840s as a byproduct of gold mining in Hall County. A nice summary of the history of these diamond finds is discussed here. The discovery is discussed in the book in the Hall County chapter which says "It is the opinion of several scientific gentlemen, that if proper attention were paid to this subject, large quantities of diamond might be found…"

The map also locates towns and villages, counties, roads, railroads, watershed, etc. It is surrounded by a ruled border and further decorated by fancy lettering in the title. Engraved by Sherman & Smith and printed at Ackerman's, both in New York City. This map is a good example of a geological map that was issued to promote the region where economic resources were found. Gold and diamonds certainly captured the public interest so they served an important part of the marketing of Georgia as presented in the publication.

References: Marcou & Marcou #548; Howes #W-354.

Condition: B+

Issued folding with some light toning along the vertical folds and archival repairs to several short fold separations on verso.