The Northern Lakes expansion for the base game Trophy Bass 2 adds five additional fishing spots, modeled after their real life counterparts: Lake Winnebago (Wisconsin, at the largest lake in the state), Lake Onieda (New York), Mille Lac (Minnesota), Lake St. Clair (Michigan/Ontario) and Dale Hollow (Tennessee). Additionally, there are new species of fish with bass, pan and catfish: the monster pike, sauger, rock bass, yellow perch, musky and tiger musky (a hybrid).