Proof of Concept

Williamstown · Rensselaer County · NY

0.2 miDistance
27 ftTotal climb
41 ftTotal descent
1,599 ftHigh point
1,561 ftLow point
intermediate (blue)Difficulty
dirtSurface

Elevation profile

Proof of Concept is a 0.2-mile intermediate (blue) trail near Williamstown, in Rensselaer County, NY. It climbs 27 ft and descends 41 ft, between 1,561 ft and a high point of 1,599 ft. The surface is dirt. Mapped for hiking, trail running, mountain biking.

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Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Updated 2026-07-21. Open the interactive map for routing, weather, and offline use.