Troy is situated on the east side of the Hudson River.Mount Ida is a large delta covered with lake silt and sand. It is a relic from the time when the Hudson Valley was covered with water in the last ice age. W.H.Bartlett, steel engraving , hand coloured, engraved by R.Wallis
from “American Scenery" by N.P.Willis Esq. Illustrated by W.H. Bartlett. Published for the Proprietors by George Virtue, 1839.