Analysing terrain data
The exposure grade describes the potential consequences of falling or slipping off the path.
Low Exposure: The path is on completely flat land and potential injury is limited to falling over.
Medium Exposure: The trail contains some obstacles such as outcroppings and rock which could cause injury.
High Exposure: Some trail sections have exposed ledges or steep ascents/descents where falling could cause serious injury.
Extreme Exposure: Some trail sections are extremely exposed where falling will almost certainly result in serious injury or death.
With a train station at both the southern and northern terminus, this segment creates an opportunity for a car-free point-to-point hike.
Though service is limited to both stations, day hikers often utilize it over the weekends to access popular landmarks like Anthony's Nose from the south, or Cat Rocks from the north. If beginning at Bear Mountain Bridge, there is typically roadside parking available, though it can become quite busy on the weekends.
The AT enters the forest a few hundred feet up the road heading northeast, but an alternate access trail leads straight to Anthony's Nose, a popular overlook with an excellent vantage point to Hudson River. Before the first road crossing, you'll reach the first campsite along the stretch.
A few miles north, you'll reach US-9.
A small gas station and market sit at the intersection and are often used for resupply. Continuing north, the trail crosses several roads and meanders its way through small communities.
Clarence Fahnestock State Park lies ahead and welcomes you with a few small lakes, and ultimately Canopus Lake.
The trail parallels the west shore of the lake then continues north where it crosses the Taconic State Parkway.
No parking area or services exist here or where the trail crosses I-84.
Ahead, the trail passes another shelter, then Depot Hill before crossing NY-55. The final portion of this segment holds two final landmarks.
Several stories surround Nuclear Lake, as it was once home to a private nuclear research facility.
The lake was also the site of a plutonium spill prior to its purchase by the NPS.
Though picturesque and littered with wildlife, no swimming is allowed. Atop West Mountain, the trail reaches the final overlook of this segment, commonly known as Cat Rocks.
Its picturesque vantage point makes it a perfect opportunity for a day hike. At NY-22, you'll reach the Appalachian Trail Station and a parking area just north on the road. Sources: http://articles.latimes.com/1986-07-20/news/mn-17096_1_appalachian-trail