Every named stream in the Adirondack Park — the feeder waters that line the High Peaks valleys and fill the ponds.
OK Slip Brook drains a quiet corner of the southern Adirondacks near Indian Lake — one of those named tributaries that shows up on USGS quads but rarely in guidebooks or fishing reports. The name likely comes from early logging operations, when "OK" might have marked an approved haul route or sorting yard along the brook's course. No species data on file, no formal access points documented, and no nearby trailheads to anchor a visit — this is a water you'd encounter by accident while bushwhacking or tracing property lines, not by design. If you fish it, you're working on local knowledge or pure curiosity.
Onion Brook flows through the southern fringe of the Indian Lake region — a tributary system in country that sees more logging roads than hiking traffic, and more snowmobile routes in winter than paddlers in summer. The name shows up on USGS quads but rarely in trip reports; it's working forest, not High Peaks, and the brook itself is modest by Adirondack standards. No fish data on file, no formal access points, no reason to go unless you're hunting, snowmobiling the Cedar River corridor, or piecing together a bushwhack route between the Moose River Plains and the Cedar River Flow. If you know where Onion Brook is, you probably already know why you're there.