- Quadrilateral (Wikipedia)
In geometry a quadrilateral is a four-sided polygon, having four edges (sides) and four corners (vertices). The word is derived from the Latin words quadri, a variant of four, and latus, meaning “side”. It is also called a tetragon, derived from greek “tetra” meaning “four” and “gon” meaning “corner” or “angle”, in analogy to other polygons (e.g. pentagon). Since “gon” means “angle”, it is analogously called a quadrangle, or 4-angle. A quadrilateral with vertices A, B, C and D is sometimes denoted as ABCD.
- Mount Shuksan (summitpost.org)
“Mt. Shuksan epitomizes the jagged alpine peak like no other massif in the North Cascades… it has no equal in the range when one considers the structural beauty of its four major faces and five ridges…There is no other sample in the American West of a peak with great icefall glaciers derived from a high plateau, and in the Pacific Northwest it is the only non-volcanic peak whose summit exceeds timberline by more than 3000 feet… Shuksan is one of the finest mountaineering objectives in the North Cascades and its reputation is certainly deserved; a wide variety of challenges can be encountered on this quite complex mountain. The climber has a choice of rock walls, moderate firnfields, steep ice, and easy scrambling. Despite a sometimes-forbidding appearance, Shuksan has yielded 14 routes, numerous variations, and impressive subsidiary climbs, including some directly up dangerous ice cliffs.” - Fred Becky (Cascade Alpine Guide : Rainy Pass to Fraser River) Shuksan is one of the most photographed mountains in the world for it’s striking beauty and easy access. It is ranked #13 on Washington’s Highest Peaks (#10 on the Bulger List), #60 on Washington’s Steepest, is on Fred Beckey’s Great Peaks of North America, and has 4,411 feet of Prominence (#13 in Washington). It also has a route listed on North America’s 50 Classics list. The mountain’s name Shuksan comes from the Native American (Lummi tribe) word šéqsən, which means “high peak”. Shuksan is located in the North Cascades National Park at the edge of the Mount Baker Scenic Byway. Shuksan Arm is located in the Mount Baker National Forest.
- Mount Shuksan (wa100.dnr.wa.gov)
Visitors new to Washington may never have heard of Mount Shuksan, but it is one of North America’s most iconic peaks. Situated on the western flank of the rugged North Cascades National Park, the mountain is capped by glaciers and surrounded by picturesque alpine lakes and meadows. The area offers a wealth of outdoor activities year-round, including hiking, camping, mountain biking, fishing, climbing, mountaineering, skiing, and snowshoeing. Mount Shuksan is frequently photographed from nearby Picture Lake, which provides a reflecting pool for this striking summit. The peak is widely regarded as one of North America’s classic mountaineering routes, renowned for its technical difficulty. For those seeking a more relaxing pursuit, accessible trails around the mountain, including the aptly named ‘artist point’, offer unparalleled views of Mount Shuksan as well as nearby Mount Baker and the surrounding peaks of the North Cascades.
- Mount Shuksan (Wikipedia)
Mount Shuksan is a glaciated massif in the North Cascades National Park. Shuksan rises in Whatcom County, Washington immediately to the east of Mount Baker, and 11.6 miles (18.7 km) south of the Canada–US border. The mountain’s name Shuksan is derived from the Lummi word [šéqsən], said to mean “high peak”. The highest point on the mountain is a three-sided peak known as Summit Pyramid.
