The Mexican Third Fleet was a unit of the Navy of the United States of Mexico. During the War for Salvation the Third Fleet, under the command of Admiral Howard Loyo, took control of the New Granadan port city of Santa Marta on 4 March 1890. Once the city was secure, the 34th Marine Brigade under Colonel David Brewster set out on the march to the New Granadan capital of Bogotá.
Sobel's sources for the role of the Third Fleet in the War for Salvation are John Earley's A History of the New Granada Expedition (New York, 1914); and Miguel Olin's El Jefe's War for Salvation (New York, 1956).