Mount Bertha is a 10,204-foot (3,110 meter) glaciated mountain summit located in the Fairweather Range of the Saint Elias Mountains, in southeast Alaska, United States. The peak is situated in Glacier Bay National Park, east-northeast of Mount Crillon which is the nearest higher peak, and southeast of Mount Fairweather, which is the highest peak in the Fairweather Range. The mountain's name first appeared in 1910 when published by U.S. Coast and Geodetic Survey. The USGS claims it was named after S.S. Bertha, an Alaska Commercial Company steamer in service from 1888 until it wrecked at Uyak Bay on July 18, 1915. However, according to Bradford Washburn of the Boston Museum of Science and American Mountaineering Museum, this feature was named for a prostitute in Skagway known by members of the International Boundary Commission who surveyed the area. The first ascent of the peak was made July 30, 1940, by Bradford Washburn, his wife Barbara Washburn, Maynard Miller, Michl Feuersinger, and Thomas Winship. It was the first mountain climbing experience for Barbara, and Bradford would later refer to the expedition as their honeymoon since they had recently married in April. After the expedition she would learn that she was several months pregnant. In 1947 she became the first woman to summit Denali. The months May through June offer the most favorable weather for climbing and viewing.