Tom Dick and Harry Mountain is a volcanic mountain in northern Oregon near Mount Hood and Government Camp, generally considered a foothill of Mount Hood because of its proximity to the larger peak. Its crest has three distinct summits that give the mountain its name and form a cirque now used by the Mount Hood Skibowl ski resort. The mountain rises to 5,070 feet, with Mirror Lake on its north side, and it shares the volcanic andesite and basalt cap seen on nearby Zigzag Mountain. Its name was in use by at least 1897 and was formally adopted in 1969, preserving the familiar phrase.