Fritz Wiessner

Wiessner was also a proficient skier. He was reportedly disappointed that he was not allowed to fight for the U.S. in World War II, serving instead as a technical advisor to the 10th Mountain Division, and to the "equipment for cold climatic areas commission" of the office of the Quartermaster General of the United States Army in Washington, DC.

Once, when climbing with a much younger climber sometime in the mid-1970s, the younger climber led the first pitch, and confided to Wiessner that he had soloed the route earlier in the week. "Ah, you must vee climbing pretty goot!" Wiessner said. He then took the lead for the second pitch, putting in no protection—effectively soloing the pitch. When his partner reached the top, Fritz grinned impishly. "I must vee climbing pretty good too" Wiessner (then in his middle 70s) said. (The source for this anecdote is Guy Waterman).

In 1939, he led an ill-fated American expedition to K2, coming within 700 feet of the summit before having to turn back. Wiessner recounted that, although the difficulties of the climb had been passed and the remainder was straightforward, he turned back in deference to the wishes of his sherpa, Pasang Dawa Lama. No one came as close to the top of the mountain again until July 31, 1954, when the first ascent was achieved by Lino Lacedelli and Achille Compagnoni on the 1954 Italian Karakoram expedition.

In 1952, the Wiessner family moved to Stowe, Vermont, where Fritz would live to the end of his days. Wiessner died after suffering a series of strokes at age 88.

In 1945, he married Muriel Schoonmaker. In 1946, their son Andrew was born. In 1947, their daughter Pauline (Polly) was born. Daughter and son both accompanied their father on many later expeditions and climbing trips. Muriel was a trusted climbing, scrambling, and skiing companion to Fritz for the rest of his life.

Wiessner, often in partnership with fellow immigrant Hans Kraus, established numerous first ascents in the Gunks, including many climbs that are popular (and intimidating) to this day. Perhaps their best known combined effort is the very popular High Exposure buttress 5.6, which they first climbed in 1941 with a hemp rope and three soft iron pitons. Other notable Wiessner first ascents in the Gunks include: Gargoyle 5.5, High Traverse 5.5, White Pillar 5.7, Baby 5.6, Frogs Head 5.6; Gelsa 5.4, High Corner 5.7 and Yellow Ridge 5.7. In 1946, he led Minnie Belle, the first 5.8 in the Gunks.

In 1935, while climbing at Breakneck Ridge on the Hudson River, Wiessner spotted the gleaming white quartzite cliffs of the Shawangunks in the distance. The following weekend he set off in search of the tantalizing cliffs and immediately set about climbing the highest point in the area, a cliff now known as Millbrook mountain. Along with John and Peggy Navas, he established a route now named Old Route 5.5, the first recorded technical rock climb in the Shawangunks, and in doing so helped to establish the area as a mecca for rock climbers.

In 1935, Wiessner established a climb in Connecticut called Vector. 5.8.

In 1931, Wiessner made contact with members of the American Alpine Club and immediately set a new standard in American rock climbing. Across North America, he established a substantial list of first ascents at such climbing areas as Ragged Mountain (Connecticut); Cannon Mountain (New Hampshire); Wallface Mountain, New York Adirondack Mountains; Mt. Rushmore National Memorial, South Dakota; Devils Tower, Wyoming (the first free ascent); and Mount Waddington, British Columbia.

During his first years in America, Wiessner founded a chemical company that specialized in waxes, including a widely used ski wax known as Wiesner's Wonder Wax. He successfully developed his company during the Great Depression of the 1930s.

Wiessner started climbing with his father in the Austrian Alps before World War I. At the age of 12, he climbed the Zugspitze, the highest peak in Germany. In the 1920s, he established hard climbing routes in Saxony and the Dolomites that have a present-day difficulty rating of up to 5.11. That was at a time when the hardest free climbing grade in the United States was 5.7. At the age of 25, he made the first ascent of the Fleischbank in Tyrol, which was proclaimed the hardest rock climb done at that time.

Fritz Wiessner (February 26, 1900 – July 3, 1988) was a German American pioneer of free climbing. Born in Dresden, Germany, he immigrated to New York City in 1929 and became a U.S. citizen in 1935. In 1939, he made one of the earliest attempts to climb K2, one of the most difficult mountains in the world to climb.