Natural Trap Cave reopened to scientists

Natural-Trap-Cave-reopened-to-scientistsCHEYENNE, Wyo., July 24 (UPI) –The entrance of Wyoming’s Natural Trap Cave is just 15 feet long and 12 feet wide, big enough to let in sunlight and a few scientists. But as visitors quickly find out, that bit of sunlight illuminates an expansive cavern beneath — 85 feet deep and 120 feet wide.