2021 Map of Clarence Cannon Dam

About this map

Clarence Cannon Dam anchors this landscape in eastern Missouri, where it impounds the Salt River to form the expansive waters of Mark Twain Lake. The modern topography reflects a massive alteration of the river valley, with flooded fingers of the lake reaching into drainages like Rocklick Br and Madden Br. While newer recreational areas and residential clusters like The Landing and Cedar Ridge overlook the water, older markers of the land's history remain. The Utterback Cem sits on a ridge near the rural settlement of Joanna, providing a vital link for genealogists tracing families in the Monroe and Ralls County borderlands. Smaller water bodies like Henderson Lake and Monroe Lake B are interspersed among a network of county roads and local lanes such as Hereford Ln and Bethlehem Trl.