"U.S. Frigate Macedonian, Capt. J. Mayo, U.S.N. commanding."
"Note: the red figures denote soundings by Lt. Vidal in 1820. The black [figures] are mine deterd. by angles & c[hains]. Anchoring ground small but secure for small vessels. The precipice is so high that it is necessary to tow in with boats as it is calm generally 1 or 2 miles off."
Map listed in: Manuscript and annotated maps in the American Geographical Society Library: a cartobibliography, 2010.
Includes view: Appearance of land off Tarrafal St. Antonio at distance of 2 miles.