Less than forty miles from Manhattan, the Mianus River Gorge Preserve (MRGP) is an oasis of rich woodland and old-growth forest one hour’s drive from New York City. The preserve was established in 1953 to protect an old-growth hemlock forest and receives the special designation as the first Nature Conservancy land project and the first National Natural History Landmark designated by the US Department of the Interior.
A private preserve, the Gorge today covers more than 750 acres. The preserve is open to the public from April 1 through November 30 from 8:30am to 5pm. We are closed for the winter when we allow our trails to rest and allow our limited staff to focus on our other priorities of research, education, and land protection. There is no entrance fee, but we do encourage visitors to make a financial contribution to support our facility and programs.
The Gorge is open to hiking only. While we understand this can be an inconvenience, the rewards are many. Our hiking paths are narrow and winding, well kept, yet rugged. Visitors have the experience of a remote wilderness within an hour’s drive from one of the world’s largest cities. It is important that we impart this experience to all our visitors as well as maintain the gorge in a natural state for scientific research and education.
Visitors to the Gorge enjoy over 5 miles of guided trails. Stop by our map shelter to learn about the delicate ecology and natural history of the Preserve, keep informed about our ongoing research and educational initiatives or obtain a special interest publication, a copy of our latest newsletter or a trail map. Restroom facilities as well as potable water are available near the Gorge entrance.
Please note that for your safety and to protect the integrity of our old-growth forest, power-driven mobility devices are not permitted on the hiking trails owned or managed by the Mianus River Gorge Preserve, Inc. Please click here to view MRGP Policy regarding power-driven mobility devices.
In order to protect the Gorge,
please follow these rules:
- No dogs, even on leash
- No bicycles or any vehicles on trails
- No smoking or fire in any form
- Do not remove or disturb plants, animals or minerals
- Do not picnic in the woods
- Do not leave designated trails
- Do not cut or remove standing or fallen trees
- Do not hunt or trap animals
- Do not swim, wade or fish in river, streams or reservoir
- Do not disturb scientific research sites
- No camping permitted in the Preserve
- Boats are not allowed on the river or reservoir