Peekskill Hollow Creek

Approximately 17 miles (27 km) in length, it originate as the outflow of Lake Tibet in the southwestern part of the town of Kent and flows southwest towards the town of Peekskill in farthest northwest Westchester County.

For several miles after leaving Kent it serves as the border between the towns of Carmel and Putnam Valley.

The creek's drainage area, which includes manmade Lake Peekskill in Putnam Valley, is slightly more than 47 square miles (120 km2).

In Colonial times and beyond, before Putnam County's topography was well understood and its features given names, it was thought by some that Peekskill Hollow Creek's headwaters drained from what is today's Boyds Corner Reservoir in the town of Kent one mile to Lake Tibet's east.

Instead, it drains eastward into the Croton River watershed, part of the New York City water supply system.

The town of Putnam Valley in New York
A careful examination shows Peekskill Hollow Creek's headwaters begin short of Boyds Corner Reservoir , part of the Croton River watershed , and instead head southwest towards the Hudson. The creek joins two others before emptying into the river near Peekskill