1959 Map of McCarthy B-1

About this map

Mount Bear and the high-altitude ice fields of the Saint Elias Mountains dominate this 1959 survey of the international border. The landscape is defined by the massive Klutlan Glacier, which flows eastward across the northern portion of the quadrangle toward the Alaska Yukon boundary. The map serves as a primary record of glaciological conditions in the mid-20th century, meticulously documenting the extensive fields of crevasses that mark the glacier's surface. Along the eastern edge, the United States Canada line runs through a succession of unnamed peaks and ridges, illustrating the challenges of surveying the remote terrain where the Wrangell-St. Elias wilderness meets the Yukon Territory.