Every named river in the Adirondack Park — the Hudson, the Moose, the Raquette, the Sacandaga, and the rivers that drain the High Peaks.
East Bay is a river designation in the Brant Lake watershed — likely a tidal or near-tidal segment connecting inland water to Lake Champlain, though the name suggests a sheltered inlet rather than a fast-moving channel. Without documented fish survey data or maintained access points, this is a cartographic label more than a paddling or angling destination — the kind of water that shows up on USGS quads but not in fishing reports. If you're working this corner of the northeastern Adirondacks, Brant Lake itself (just west) is the reliable put-in, with boat launch access and a summer lake trout bite in the deeper water.