The USGS gauge on the Oswegatchie in Harrisville provides an "approximation". The benchmarks below have many variables, so proper assessment is necessary
Put In rapid marks the entry point for this river section, characterized by a straightforward initial approach with minimal technical challenges. Paddlers should be aware of potential shallow areas and scattered rocks near the entry, requiring careful navigation and reading of water flow. While not a highly technical rapid, attentive line selection and standard river reading skills are recommended.