
Along a half-mile spur of the Catharine Valley Trail, south of the Mountour trailhead.

This spur crosses Catharine Marsh before rejoining the main trail along the hillside.

Approaching the trailhead at South Genesee Street. A plaque inset in the opposite side of this sign honors trail founder Ed Hoffman of Elmira; I haven't yet learned the significance of the W on the sign's north face. But I like it.
Edit: My thanks to the commenter who explained that the 'W' indicates that the trainman needed to blow the whistle for an upcoming crossing.

