This is a large, two-sided map of the Florida Keys with a inset detail map of Key West. It’s undated but likely comes from the early 1970s.
The map also provides tourist information.
It follows the path of US Route 1 from the Florida mainland onto the southern part of Key Largo and then on to the rest of the keys. The map leaves off the northern portion of Key Largo.
US 1 is also known as the Overseas Highway as it runs from Key Largo to Key West.