The History of the Several Towns, Manors, and Patents of the County of Westchester (1881 revised edition, Vol. I)
When Stuyvesant ate of the flesh and heard the strange story of its death, he " marvelled exceedingly ; " and in commemoration of the event he named the lofty lull, which rises more than twelve hundred feet above the bosom of the river "Anthony's Nose." As the steamboat sweeps round the Donder Berg, with Anthony's Nose on the right, the theatre of one of the most interesting of the romances of the Hudson is presented in lofty Bear Mountain in front, Lake Sinnipink, or Bloody Pond, on a broad terrace at its base, and Poplopens Creek flowing into the river on the western shore between high rocky banks. Upon these banks lay Forts Clinton and Montgomery, the former on the south side of the creek and the latter on the north side.
These forts were built by the Americans for the defence of the lower entrance to the Highlands, against fleets of the enemy that might ascend the river; for it was known from the beginning that it was a capital plan of the British Ministry to get possession of the valley of the Hudson, ar.d so separate New England from the other colonies. In addition to these forts, a boom and chain were stretched across the river from Fort Montgomery to Anthony's Nose to obstruct the navigation.
We have observed that Clinton swept around the Donder Berg with a part of his army, and fell upon Forts Clinton and Montgomery. That was on the 7th of October, 1777. Tiie brothers, Qenerals George (Governor) and James Clinton commanded the little garrison. They were brave and vigilant. It was not an easy task for the enemy to approach the fort through the rugged mountain passes, watched and attacked by scouting parties. They had divided, one party accompanied by the baronet, making their way toward evening, between Lake Sennipinkand the river, there they encountered abattis covering a detatchment of Americans.