Pipe Creek Sinkhole have also been found there. Pipe Creek Sinkhole preserves an ancient wetland. It was created by the collapse of a limestone cave in a Silurian reef formation. That left a steep-sided depression about long, wide and deep. When water collected in the depression, it became the habitat of the plants and animals whose remains were preserved there when the sinkhole was buried by glacial outwash and till during the Pleistocene Epoch, two million to 11,000 years ago. While the ecology of the Pliocene in North America is well-known from fossil discoveries in other places, notably coastal sites, the Pleistocene glaciers
A Void A Void A Void, translated from the original French La Disparition (literally, "The Disappearance"), is a 300-page French lipogrammatic novel, written in 1969 by Georges Perec, entirely without using the letter "e" (except for the author's name), following Oulipo constraints. It was translated into English by Gilbert Adair, with the title A Void, for which he won the Scott Moncrieff Prize in 1995. Three other unpublished English translations are titled A Vanishing by Ian Monk, Vanish'd! by John Lee, and Omissions by Julian West. The book has also been translated into German (by Eugen Helmlé as Anton Voyls Fortgang, 1986),