And now, half a mile up the highway and twenty million years up the time scale, we were looking at the younger of the two formations of which Kittatinny Mountain is locally composed. Generally red, the rock is named for Bloomsburg, outer reach of the deltaic plain in late Silurian time, four hundred and ten million years before the present. Less than two hundred years before the present, when the United States was twenty-four years old, the first wagon road was co-working space amersfoort achieved through the Water Gap. The dark narrow passage in rattlesnake-clefe nded rock had seemed formidable to Colonial people, and the Water Gap had not served them as a transportational gateway but had been left aloof, mysterious, frightening, and natural. In the hundred feet or so of transition rocks between the gray Shawangunk and the red Bloomsburg, we had seen the Silurian picture change from sea and seashore to a low alluviated coastal plain; and if we had a microscope, Anita said, we would see a few fishscales in the Bloomsburg river sands-from fish that looked like pancake spatulas, with eyes in the front comers. In i820, the Water Gap was discovered by tourists. They were Philadelphians with names like Binney. Breaking away some red sandstone, Anita remarked that it was telling a story of cut-and-fill-the classic story of a meandering stream. The stream cuts on one side while it fills in on the other. Where bits and hunks of mudstone were included in the sandstone, the stream had cut into a bank so vigorously co-working space enschede that it undermined the muddy soil above and caused it to fall. Meanwhile, from the opposite bank-from the inside of the bend in the river-a point bar had been building outward, protruding into the channel, and the point bar was preserved in clean sandstones, where curvilinear layers, the crossbeds, seemed to have been woven of rushes.