This map spans nine 7.5 minute quads stretching from the Grenville-age Precambrian basement of the southeastern Adirondacks across normal-faulted, gently-dipping Early Paleozoic shelf carbonates, across the Giddings Brook Thrust, and into the folds and thrusts of the Taconics. Difficulty level for map interpretation: moderate; difficulty level for student-constructed cross sections: challenging.