While many of the locations on this site require special permission to enter or are off limits, there are quite a few that can be visited and enjoyed by all.
BENNETT COLLEGE FOR WOMEN / HALCYON HALL
Excellent views from a convenient pull-over on Route 343.
Heavily patrolled. View and photograph from outside the fence only.
CEDAR GLEN RUINS, FRANNY REESE STATE PARK
Hike to the ruins of the Dr. Charles H. Roberts’ estate.
CLAUSLAND MOUNTAIN PARK/REMAINS OF A MISSILE SILO
Rockland County, NY
Yes, missile silo. Visitors to Rockland County’s Clausland Mountain Park can enjoy two miles of trails leading to the ruins of a Soviet-era Nike Missile Silo once used to protect Manhattan from attack.
CLERMONT MANSION AND RUINS
The Livingston mansion known as Clermont is very much intact, but a short walk around the grounds reveals the ruins of an older home, dock and other structures.
Bear Mountain State Parks, Rockland County NY
Settled in the 1760s by miners and loggers, the tiny hamlet of Doodletown once included a church, school, businesses and two cemeteries in addition to 70 houses. It is now completely abandoned and most of the structures have been torn down. The hike to Doodletown is quite long (about 7.3 miles) and can be strenuous.
EMPIRE STATE RAILROAD MUSEUM/PHOENICIA RAILROAD STATION
Wonderful old railroad station and collection of vintage railroad cars and equipment. (ESRM is open to the public weekends and holidays from Memorial Day through October)
HARRIMAN STATE PARK/ABANDONED MINES
Rockland/Orange Counties, NY
There are several abandoned mines in Harriman State Park, reachable after a strenuous hike. These mines are extremely dangerous and should not be entered. Photograph exteriors only.
HUCKLEBERRY PICKERS’ SHACKS/SAM’S POINT PRESERVE
Explore a fascinating but little known piece of history by hiking to the remains of the huckleberry pickers’ cabins on the Shawangunk Range. The hike can be strenuous but the mountaintop view is stellar.
Sam’s Point Preserve
MADAM BRETT PARK/TIORONDA HAT WALKS
Before becoming an arts mecca, Beacon played an important role in the industrial growth of the region, earning the nickname the “Hat-making capital of the world.” Visitors to Madam Brett park can see the
site of the old grist mill and the ruins of the Tioronda Hat Works factory, while enjoying accessible trails leading to parklands, wildlife viewing and a waterfall.
MULFORD ICE HOUSE RUINS/FALLING WATER PRESERVE
Short hike to the ruins of what was once a massive ice house.
OVERLOOK MOUNTAIN HOUSE
This is a hike of approximately 4.5 miles to reach the ruins of the Overlook Mountain House,a 19th century Catskill Mountain retreat.
Views of abandoned ships, cement plant, kilns. Park with care, respect private property
SNYDER ESTATE/WIDOW JANE MINE
Visit an abandoned limestone mine, see Century House (the Snyder Estate), and learn more about the area’s cement industry at the museum.
WEST POINT FOUNDRY
Cold Spring NY
Explore a 19th century ironworks where iron used in steam engines, Civil War-era artillery and pipes used to bring water to New York City was manufactured. A half-mile universally accesible trail leads from the Cold Spring Metro-North Station to the visitors center.