This is an original 1866 map chart of Suison Bay in California, made by the U.S. Coast Survey. The detailed map features the coastline and surrounding terrain, with notes on the type of terrain and any relevant features. The map is a great addition to any antique collection, especially for those interested in North American maps and globes. The chart is in its original form and has not been reproduced, making it a valuable piece for collectors and enthusiasts alike.