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In archeological literature, the name Boylston Street Fishweir refers to ancient fishing structures first discovered in 1913, buried 29 to 40 feet (8.8 to 12.2 m) below Boylston Street in Boston, Massachusetts. Reports written in 1942 [1] and 1949 [2] describe what was thought to be remains of one large fishweir, 2,500 years old, made of up to ...
Fishing is an ancient practice that dates back at least to the Upper Paleolithic period which began about 40,000 years ago. [4][5] Isotopic analysis of the skeletal remains of Tianyuan man, a 40,000-year-old modern human from eastern Asia, has shown that he regularly consumed freshwater fish. [6][7] Archaeological features such as shell middens ...
Doggerland was an area of land in Northern Europe, now submerged beneath the southern North Sea. This region was repeatedly exposed at various times during the Pleistocene epoch due to the lowering of sea levels during glacial periods, though the term "Doggerland" is generally specifically used for this region during the Late Pleistocene and ...
The 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 75 meters (246 ft) long, 50 meters (164 ft) wide and 11 meters (36 ft) deep. When water collected in the depression, it became the habitat of the plants and animals whose ...
Lake Cahuilla (/ k ə ˈ w iː. ə / kə-WEE-ə; [1] [2] [3] also known as Lake LeConte and Blake Sea) was a prehistoric lake in California and northern Mexico.Located in the Coachella and Imperial valleys, it covered surface areas of 5,700 km 2 (2,200 sq mi) to a height of 12 m (39 ft) above sea level during the Holocene.
In the forest of the sinkhole there are probably many species of small animals and plants unknown to science. [7] The forest has shoulder-high vegetation and tall trees. [ 2 ] Explorers found a large area of wild plantain ( Heliconia ) species at the bottom, as well as square bamboos ( Chimonobambusa quadrangularis ) [ 8 ] with thorns 2 cm to 3 ...
The Sinks are a natural tunnel accommodating Gandy Creek, a tributary of Dry Fork, for about 3,000 feet (910 meters) as it passes under a spur of Yokum Knob to reemerge on the opposite side of Randolph County Route 40 (Dry Fork Road). The southern (upstream) entrance to the Sinks, about 30 feet (9.1 m) wide and 15 feet (4.6 m) high, is in a low ...
Slaughter Stream Cave, also known as Wet Sink, is a cave system in the Wye Valley, Forest of Dean. A series of fixed ladders and two pitches lead to sporting streamways, sandy crawls and fossil passages. The cave also contains some interesting archaeological finds, many historic bones were found in the cave – the most prominent of which is ...