What the Iroquois Said About the Stone City Beneath the Finger Lakes — Recorded in 1841

Sealed Underground Chamber Found Under Indiana Cornfield in 1936—Filled With Concrete

What the Powhatan Said About the Buried City Beneath the Chesapeake — Documented in 1887

The Ancient Tunnel System Under Oklahoma Runs Deeper Than Any Surveyed Mine in the State

What the Nez Perce Warned Settlers About the Cave Where the Sky People Slept — Recorded in 1889

A Tennessee Well Crew Hit a Marble Floor in 1908 — The County Records Stop That Same Month

What the Navajo Said About the Silent Towers of Chaco Canyon — Documented in 1849

What the Smithsonian Sealed From the Georgia Mound Excavation of 1891 — Records Still Classified

The Ancient Technology Found in a Montana Copper Mine Doesn't Match Any Known 1800s Tool

Colorado Rancher Uncovers 12-Foot Skeleton in 1895—Paper Retracts Story a Week Later

The Lost Civilization Beneath Lake Michigan Left Structures No Engineer Can Explain

Utah Cave Explorers Found a Sealed Passage in 1954 — The Forest Service Closed the Site by Fall

A Sealed Well Outside Santa Fe Matched a Warning the Pueblo Elders Gave Settlers in 1847

What the Miwok Said About the Gold the Sierra Rivers Were Never Meant to Give Up — 1850s

Miners in Idaho Sealed a Shaft in 1898 After Finding Something No Geologist Could Explain

What the Ute Said About the Tunnels Beneath Colorado's Abandoned Silver Camps — Documented in 1879

A Kentucky Well Digger Hit a Carved Floor in 1911 — The Cherokee Already Had a Name for It

What the Shoshone Warned About the Silver Vein No Prospector Ever Reopened — Recorded in 1863

Divers in a Wisconsin Quarry Found a Stairway Going Down — No Blueprint Ever Explained It

What the Choctaw Said About the Caves Beneath the Mississippi Salt Works — Documented in 1902

Coal Miners in Pennsylvania Broke Into a Sealed Room in 1887 — The Tribe Had Warned Them

What the Paiute Said About the Water Beneath Nevada's Silver Mines — Recorded in 1891