Brockhaus-1911: Rocky Mountains · Ozark Mountains · White Mountains · Saguache Mountains · Hoosac Mountains · Cedar Mountains · Blue Mountains · Green Mountains · Cumberland Mountains
Herder-1854: White Mountains · Rocky Mountains
Meyers-1905: Rocky Mountains · Ozark Mountains · Hoosac Mountains · San Juan Mountains · White Mountains · Wahsatch Mountains · Uintah Mountains · Catskill Mountains · Black Mountains · Big Horn Mountains · Cedar Mountains · Green Mountains · Elk Mountains · Cumbrian Mountains
Pierer-1857: Rattle Snake Mountains · Rocky Mountains · Ragged Mountains · Ozark Mountains · Potatoe Mountains · White Mountains · Wind River Mountains · Wahsatch Mountains · Schooley's Mountains · Stony Mountains · Cumberland-Mountains · Green Mountains · Cobequid Mountains · Blue Mountains · Cerne Mountains · Kittatinny Mountains · Lukkee Mountains · Kayaderosseras Mountains · Humboldt River Mountains · Iron Mountains