|Best months for climbing:||Jul, Aug, Sep, Oct|
|Nearest major airport:||Seattle-Tacoma|
Thanks to theyogiclimber for adding this peak.
Sourdough Mountain is located north of Diablo Lake in North Cascades National Park and can be seen from the Diablo Lake overlook on the North Cascades Highway. A strenuous 5.2 mile trail gains 4900 feet from lake level to a historic fire lookout at the top from which there are commanding views of the park and Pasayten Wildeness.
Thanks to theyogiclimber for this description.