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A 2012 study of beavers' mark on the landscape found that cut stumps were negatively related to distance from beaver canals, but not to the central body of water. This finding suggested that beavers may consider the canals to be part of their "central place" as far as foraging activity is concerned. [69]
The Riverbluff Cave is a paleontological site discovered in the United States, near Springfield, Missouri.The entrance is filled with stalactites, stalagmites and columns. . The cave is about 830,000 years old (making it the oldest known fossil cave site in the US [1]) and 610 m long, featuring Pleistocene fossils, notably of the short-faced bear (Artcodus simus) the largest bear species on ...
Castoroides (from Latin castor (beaver) and -oides (like) [2]), or the giant beaver, is an extinct genus of enormous, bear-sized beavers that lived in North America during the Pleistocene. Two species are currently recognized, C. dilophidus in the Southeastern United States and C. ohioensis in most of North America.
The only other extensive study of the region took place in the 1960s and 1970s in the neighboring lower Pomme de Terre Valley (Missouri State University's Center for Archaeological Research (CAR) 2006; Lopinot et al. 1998:39; Ray et al. 1998:73-74).
A probable location for Brower's Spring in Montana. Brower's Spring is a spring in the Centennial Mountains of Beaverhead County, Montana, that was identified by surveyor Jacob V. Brower in 1888 as the ultimate headwaters of the Missouri River and thus of the fourth-longest river system in the world, the 3,902-mile-long (6,280 km) Mississippi–Missouri River.
The Missouri River is a river in the Central and Mountain West regions of the United States.The nation's longest, [13] it rises in the eastern Centennial Mountains of the Bitterroot Range of the Rocky Mountains of southwestern Montana, then flows east and south for 2,341 miles (3,767 km) [6] before entering the Mississippi River north of St. Louis, Missouri.
Beaver ponds increase stream flows in seasonally dry streams by storing run-off in the rainy season, which raises groundwater tables via percolation from beaver ponds. In a recent study using 12 serial aerial photo mosaics from 1948 to 2002, the impact of the return of beavers on openwater area in east-central Alberta , Canada , found that the ...
Between 1820 and 1937 the Missouri River had migrated 3 mi (4.8 km) eastward and the area of the chute had originally been on the east bank of the river; today, the chute is west of the main channel of the Missouri. [4] In 1937, the Army Corps of Engineers began to rechannel portions of the Missouri River, cutting off the chute to flowing water ...