1950 Map of Healy B-1

About this map

The Susitna Glacier and West Fork Glacier dominate the upper reaches of this mid-century subarctic survey, marking the frozen origins of a complex glacial drainage system. As these massive ice sheets transition into the braided channels of the Susitna River, the landscape reveals a transition from alpine glaciation to a rugged riverine network within the Matanuska-Susitna Borough. To the south, the Clearwater Mountains rise sharply, providing a high-relief backdrop to the valley floor where the East Fork and Boulder Creek contribute to the glacial runoff. This map captures the region after 1949 aerial photography, illustrating a period of geological documentation before major infrastructure altered the wilderness character of the Alaska Interior.