A fish finder is an essential tool for anglers who want to improve their chances of catching fish. The Humminbird fish finder is a popular brand that uses advanced technology to help anglers find fish in a variety of conditions. One of the features of the Humminbird fish finder is the Follow the Contour feature. In this article, we will explain how the Humminbird fish finder uses Follow the Contour to follow the lake's bottom contour for fishing for walleye on Bull Shoals Lake.