Mount Thielsen is a prominent peak located in the Pacific Ranges mountain range of Oregon, United States. Rising to an elevation of 9,182 feet (2,799 meters), it is known for its unique spire-like summit that stands out among the surrounding peaks. With a prominence of 3,533 feet (1,077 meters), it is a prominent landmark in the region.

During the winter season, Mount Thielsen receives a substantial amount of snowfall, transforming it into a popular destination for winter sports enthusiasts. The snowpack range varies depending on the year, but it typically accumulates between 8-12 feet (2.4-3.7 meters). This creates excellent opportunities for activities like snowboarding, skiing, and snowshoeing.

Mount Thielsen is also a significant source of runoff for nearby creeks and rivers. The mountain feeds water into the North Umpqua River, which provides a vital water source for the region's ecosystems and communities. The crystal-clear waters of the river attract anglers, kayakers, and rafters, offering a picturesque setting for outdoor adventures.

The mountain derives its name from the Norwegian explorer Hans Thielsen, who surveyed the area during the 1850s. Interestingly, Mount Thielsen is also steeped in legends and lore. Native American tribes have regarded it as a sacred place and have various stories associated with the mountain's formation and spiritual significance. One legend tells of a battle between the Great Spirit and an evil serpent, resulting in the lightning that supposedly struck the peak, creating its distinctive shape. Another legend suggests that the mountain is a petrified forest turned to stone by a powerful magic spell.

Overall, Mount Thielsen stands as a majestic peak within the Pacific Ranges, offering outdoor enthusiasts a chance to experience its beauty, explore its surrounding wilderness, and immerse themselves in its rich history and legends.