The landscape of the Town of Trenton is a legacy of the last continental glaciation. About 20,000 years ago, the area lay beneath a mile or more of ice. The retreat of this last great ice sheet left behind deep gorges cut through limestone bedrock and thick beds of fine-grained sand. The latter is evident as open plains of wind-driven sand along the Trenton Greenbelt trail system. This open sand plain creates a fragile and unique habitat that is surrounded by northern hardwood forest, a mature red pine plantation, and a deep ravine filled with numerous streams that feed an important tributary of the Mohawk River.