HomeUSAOregonOregon Volcanoes JeffersonMt. JeffersonLAT,LNG 44.67600, -121.79960CREATED UPDATED Edit MapShareDescription[Edit]Mt. Jefferson is the second highest peak in Oregon. This beautiful mountain lies on the Cascade Crest, about 40 miles south of Mt. Hood, in the Mt. Jefferson Wilderness Area. The Summit Pinnacle is 5.3 by the easiest route.4 ClimbsComing soon: New Climbs1South Ridge4thTrad · Alpine2North Milk Creek Glacier4thTrad · Alpine3Jefferson Park GlacierAlpine4Center RidgeEasy 5thTrad · Alpine