Mapping the Nation - A Companion Site to Mapping the Nation by Susan Schulten
Map of the Discovery of the East Coast of the United States
Kohl’s map of the east coast used vibrant color to depict phases of exploration as waves upon the shore. Note his careful discussion on the map of the voyages of Sebastian Cabot.
A Map Showing the Progress of the Discovery of the Gulf of Mexico
Here Kohl carefully identified river voyages as well as coastal discovery, from the sixteenth century to his own day
A Map Showing the Progress of Discovery on the West Coast
Kohl innovated the use of color along the coasts to indicate the stages of discovery along the coast as well as the interior.