Missouri - US 66 - Pacific caves
Pacific silica mine "caves" (former US 66)
Pacific remains an active silica mining area, but the old mine entrances fascinate anyone just passing through. They are found directly along Business Route I-44 (old US 66) on the east side of town. Can't miss them, but please don't climb in them or you'll probably be fined or arrested. The Beacon sign is from a former motel that's now a car wash.
Continue west on old US 66 to Springfield
Continue east on old US 66 to St. Louis
Road photos from old US 66 in Pacific
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