Located entirely in Bucks County, in southeastern Pennsylvania, it rises in Springfield Township and has its confluence with the Delaware at Point Pleasant.

"[3] Early white settlers in the area noted the fast, constant current of the creek, and by the late eighteenth century a number of water-powered mills had sprung up along the lower portion of the Tohickon valley.

After the Federal Works Progress Administration converted the area for recreational use, a Ralph Stover State Park was opened to the public in 1935.

Together they protect the steep valley that Tohickon Creek cuts through the hills south of the old grist mill.

Tohickon Creek begins its journey to the Delaware as a small, nondescript stream in Springfield Township on the slopes of The Lookout.

From its source, it heads generally south, straight into Richland Township then Quakertown, the largest settlement along its entire course.

Because of the flatness of the area, Tohickon Creek's watershed along its western section is significantly larger than downstream.

For the first time along its course, the creek also supports a wide variety of fish, including walleye, pickerel, carp, and various kinds of bass and catfish.

It then begins heading in a generally eastern direction, though it constantly twists and curves for the rest of its route.

The ground along this part is very rocky and the creek quickly loses elevation, creating a clear, fast current.

The Tohickon risees in Springfield Township on a layer of diabase which intruded into the Gettysburg and Newark basin during the Jurassic and Triassic.

The diabase is typically dark gray to black, dense, and fine grained, consisting of predominately labradorite and augite.

When high-water conditions exist, normally in early March and late November, the dam at Lake Nockamixon releases surges of water for one day every few months.

This turns Tohickon Creek into a whitewater course,[6] and boaters can manage their ways the entire route from the lake to the Delaware River.

The debris caught in the bridge in the adjacent picture is from this same flood that destroyed entire parts of the canal.