The North Branch River flows 16 miles from Stoddard through Antrim and into Hillsborough, where it joins the Contoocook River. This tributary spans both Cheshire and Hillsborough Counties, offering anglers a diverse fishing experience in a predominantly natural setting. The river maintains a free-flowing character with predominantly undeveloped shorelands and natural woodland buffers along most of its length. The rocky riverbed features large boulders and several rapids throughout, creating varied habitat that supports both cold and warm water fish species. The river's natural character and accessibility make it a popular destination for both trout enthusiasts and warmwater anglers.