The USGS gauge on the Oswegatchie in Harrisville provides an "approximation". The benchmarks below have many variables, so proper assessment is necessary
**To the put in**-On Route 24 just north of the town of Russell boaters will see a NY state sign for Downerville, a no-longer existent town at the confluence of the N. branch of the Grasse with the Main branch. Coming from Russell, turn right (SE) onto dirt/gravel Donnerville road, this is just before a Transportation facility center, Continue on Donnerville road until you see an old cemetary on left, take the next right. Follow along the beaver pond, staying right at the fork then downhill to confluence. It is about a mile and a half from main road to take-out.
The road is shown on the map is in the wrong spot and is actually above the confluence of the north and main branches not below.
**To the take-out**\- The take out is a small park (with a couple of picnic tables) on the River right side as County route 24 crosses over in the town of Russell
Difficulty Classes
I EasyII NoviceIII IntermediateIV AdvancedV Expert/ExtremeVI Unrunnable