Find Expeditions Start an Expedition About Open Explorer

Mapping a Volcano: Adventures in Alaska

January 1 1927

During the summer of 1928 a group was sent to explore and map 2,500 square miles of territory near the Aleutian Islands in Alaska. Mapping the home of the great brown bear in the area of Pavlof Volcano.

January 1 1927


Accept contributions for your expediton by providing us a few details. We will create an account on your behalf at WePay. If you haven't already registered with WePay, they will send you an email to complete your registration.

Preparation Stage

A news bulletin from 1927 describing the preparations and decision to explore the area around Pavlof Volcano.

image-1 image-1
Expedition Background

National Geographic Society support allows volcanologist, Dr. Thomas Jaggar, to explore Pavlof Volcano in Alaska, map 550 square miles of previously uncharted territory, and the study of wildlife and botany. Dr. Jagger implemented the use an amphibian "mobile boat," the outcome of experiments made from the previous year's reconnaissance work.