Every named river in the Adirondack Park — the Hudson, the Moose, the Raquette, the Sacandaga, and the rivers that drain the High Peaks.
The South Branch Moose River drains west out of the Moose River Plains Wild Forest — a system of old logging roads, primitive campsites, and sandy-bottom tributaries that attracts more pickup trucks and canoes than hikers. The river splits off from the main stem near the Cedar River Flow and cuts through low rolling terrain before joining the main Moose River downstream — backcountry paddling territory, not roadside access. The Plains themselves are a dispersed camping zone with minimal crowds outside fall hunting season, and the South Branch corridor is part of that stillwater-and-sand ecosystem. Check water levels if you're planning to paddle; by late summer it runs thin.
South Inlet is the primary feeder stream for Raquette Lake — the largest natural water in the central Adirondacks — flowing in from the south and drawing from a chain of smaller ponds and wetlands upstream. The inlet drains a significant watershed, and its flow shapes the shallow southern arm of Raquette Lake, where the water runs warmer and weeds grow thick by mid-summer. Paddlers occasionally push upstream from the lake into the lower reaches of the inlet, where the channel narrows and the current picks up, but access is more exploratory than maintained. The inlet's influence on Raquette Lake's ecology is outsized — it carries sediment, nutrients, and the spring melt that turns the southern bays into prime early-season bass water.