A Topo! map of three Routes on Glacier Peak. The route from Georgia Pass (the Glacier Ridge Route) is 6 miles roundtrip and is marked in red. The Jefferson Lake Route is 7-8 miles roundtrip and is marked in blue. The Gibson Lake Route (that traverses Whale Peak) is 10 miles roundtrip and is marked in green. Topo! software by National Geographic. Routes notated by Jon Bradford.