Every named river in the Adirondack Park — the Hudson, the Moose, the Raquette, the Sacandaga, and the rivers that drain the High Peaks.
The Raquette River begins its 146-mile run to the St. Lawrence at Raquette Lake, threading north through Blue Mountain Lake, Long Lake, and Tupper Lake before turning northwest across the flatlands — one of the Park's major arteries and a multi-day paddling route with a logging-era pedigree. The section near Blue Mountain Lake moves through a mix of private shoreline and state land, with the hamlet itself serving as a logical put-in or takeout for paddlers working the upper reaches. The river widens and slows through Long Lake, then picks up current and character as it drops toward Tupper — less about whitewater, more about distance and logistics. Check DEC access points and private property lines before committing to a through-paddle; this is a river that requires a shuttle plan.
Rock River drains northwest out of the Blue Mountain Lake watershed — a backcountry stream that moves through low-gradient wetlands and mixed hardwood corridors between the hamlet and the wider Raquette River drainage. It's not a paddling destination and it doesn't show up on the stocked-waters list, but it's the kind of connector water that matters more on a map than on the ground — the veins between the lakes. Access is limited to bushwhacking or old logging traces; this is water you encounter while moving through the forest, not water you plan a trip around. If you're poking around the blue-line tributaries west of Blue Mountain Lake, you'll cross it eventually.