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
Close to a World Below Close to a World Below Close to a World Below is the fourth album by Immolation. It was released on Metal Blade Records in 2000. Since its release, "Close to a World Below" has received universal acclaim. Todd Nief of AllMusic gave the "Close to a World Below" four and a half stars, calling the album a late-career classic. He stated that with "Close to a World Below", Immolation released one of the most profound and creative death metal albums of the 2000s which gave a new voice to a genre deluged with cookie-cutter clones. Metal Storm gave "Close to