Tohickon Creek is the largest Creek in Upper Bucks County. It has been dammed just up stream from the Tinicum Border to form Lake Nockamixon. As it winds it's way through the Bucks County countryside Tohickon Creek passes Stover-Myer's Mill and then makes a dramatic display as it snakes past the "High Rock" vista at Ralph Stover Park. A short distance down stream, Tohickon Valley Park has great access to the creek.