Ever since the cosmic‐ray expedition of A. H. Compton's group in the early 1930's to Mt. McKinley, there has been a good deal of interest in the possibility of doing cosmic‐ray work on Alaskan peaks. These mountains represent about the only means of obtaining observations over any protracted period at high altitudes and at far northern latitudes. Further stimulated by our own desire to obtain neutron measurements at such elevations and latitudes, it seemed worth while to make a comprehensive examination of the present situation with a view to finding out what peaks could be occupied as research stations, and what difficulties each peak presents. In the survey which is reported herein, the key feature making the entire operation possible was the Piper Super‐Cub expertly piloted by Terris Moore, the energetic president of the University of Alaska

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