Susquehanna River Smallmouth Bass Fishing ~Pennsylvania 2017 Pennsylvania Day Two. Smallmouth Bass on the Susquehanna River for smallmouth bass was awesome. We caught some big bass. The smallmouth bass fishing was on fire. This is one of my best trip in 2017 so far. The Susquehanna River runs through Harrisburg PA. The Susquehanna river is loaded with smallies. If you have ever asked yourself how to catch a smallmouth in the river this video might help. This is where I smallie fished for two days. This video is day two where I caught some awesome smallmouth. We caught over 120 smallmouth bass in two days. Please let me know in the comments below what you think about the river fishing.