Hannegan Peak is a prominent summit located in the Pacific Ranges mountain range, known for its stunning beauty and challenging mountaineering opportunities. With an elevation of approximately 6,186 feet (1,885 meters), it offers breathtaking panoramic views of the surrounding landscape. This peak is situated within the North Cascades National Park in Washington state, making it a popular destination for outdoor enthusiasts.

During the winter season, the snowpack range on Hannegan Peak can vary significantly. Snow accumulation typically begins in November and can persist well into June. The snowpack depth can range from several feet to over ten feet, creating prime conditions for snowshoeing, skiing, and snowboarding. It is important to note that appropriate equipment and backcountry travel knowledge are essential for safe exploration during this time.

Hannegan Peak is nestled within a region that boasts numerous creeks and rivers. One such example is the Nooksack River, which receives runoff from the mountain's snowmelt and contributes to its robust flow. This river is renowned for its scenic beauty and is a popular spot for fishing, kayaking, and rafting.

The name "Hannegan" has historical significance in the region. It is derived from the surname of an early settler, E. C. Hannegan, who was an attorney and politician. While there are no specific legends or lore associated with Hannegan Peak, its rich history and majestic presence make it an enticing destination for mountaineers and outdoor enthusiasts alike.