Mount Marcy, New York topographic map and nearby trails. Download the free, full sheet USGS . Minute , scale Mount Marcy topo map as an Adobe PDF..Park at the ADK lot and start your journey. Follow the Van Hoevenberg Trail to Marcy Dam which proves an easy and oft traveled trail. When you get to the dam stop and look around. The views are great! From the dam, hike downstream to the bridge and continue left following the signs to Mt. Marcy..