1951 Map of Valdez B-5

About this map

The Tonsina Glacier dominates the southern landscape of this 1951 survey, a massive ice field defined by its extensive Crevasses that feed the Tonsina River. The valley below reveals a classic glacial drainage pattern, where the river flows north through the deep Tonsina Lake before continuing its course alongside smaller tributaries like Hurtle Creek. To the southwest, the Tsina Glacier and the headwaters of the Tsina River highlight the complex hydrological divide of this Alaskan interior. This map, based on aerial photography from 1950 and 1957, captures the area during a period of intense photogrammetric mapping. It documents the pristine state of the watershed and the alpine terrain, including isolated bodies of water like Greyling Lake and the meandering path of Greyling Creek.