National Geographic : 1908 Mar
MARKING THE ALASKAN BOUNDARY 183 THE SURFACE OF THE "HUGH MILLER" GLACIER No difficulty was found in traveling at will over this glacier TRIANGULATION PARTY RETURNING FROM A TRIP TO A STATION NEAR THE MUIR GLACIER This outfit spent fourteen successive hours working the boat through the floating ice. In eight of the fourteen hours no land was visible, and part of that time the bow of the boat was almost invisible from the stern. A dense fog covered everything, and the boat was navigated by a pocket compass. Some of the bergs were very large, and the fact that they break up and roll over without any apparent reason and without any warning, made this trip extremely dangerous. Photos by E. R. Martin, Alaskan Boundary Survey.