Blackbeard Peak is a 7,241-foot summit in Washington’s North Cascades within the Okanogan–Wenatchee National Forest, visible from the North Cascades Highway near Rainy Pass. Its significance lies in its dramatic relief, rising more than 3,000 feet above Granite Creek in about a mile, with runoff flowing into the Skagit River system. The mountain also reflects the broader natural history of the range: abundant Pacific moisture brings heavy winter snowfall and avalanche-prone maritime snowpack, while the landscape itself was formed over millions of years by tectonic uplift, volcanism, terrane accretion, and repeated Pleistocene glaciation that carved the region’s deep valleys and rugged topography.