Kerpow! We've now ferried to the New Jersey side of the Delaware River, which lands us at Fort Mott. Initially known as the Battery at Finn's Point, construction began in 1872, with the intention of adding supporting firepower to the guns at Fort Delaware. Only a few of the planned batteries were built before Congress yanked the rug out from under this and just about every other US postwar fortification project in 1876. When Old Man Endicott got his druthers in 1898, this complex was named for Major General Gershom Mott who fought in the Mexican-American War and US Civil War, and construction resumed. Only two batteries and their attendant magazines were built in the initial round of construction: This craggy thing is what's left of one of the magazines!