1961 Map of Sumdum A-3

About this map

Thomas Bay and the surrounding wilderness of the Tongass National Forest dominate this 1961 field-annotated survey, capturing a landscape defined by dramatic glacial activity and deep coastal inlets. The massive Baird Glacier is shown in detail, its north and south reaches shaping the northeastern topography. The drainage patterns are clearly defined, with the Farragut River flowing south from Farragut Lake and the South Fork feeding into Scenery Cove. A solitary Cabin near the shore of Thomas Bay provides a rare sign of human presence in a territory otherwise marked by high summits like Agassiz Peak and Cosmos Peak. This survey provides a precise look at the hydrology of the Cosmos Range before significant shifts in glacial margins, documenting the exact positions of Falls Lake, Swan Lake, and the winding Cascade Creek.