[2] The river rises at what is now Mishnock Lake in West Greenwich.

From there, it flows roughly due north into Coventry where it flows through Mishnock Swamp to the South Branch Pawtuxet River at the village of Washington.

Below is a list all crossings over the Mishnock River.

Old Hickory Brook is the Mishnock River's only named tributary, though it has many unnamed streams that also feed it.

This article related to a river in Rhode Island is a stub.