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It is also the southernmost non-extinct volcano of the Cascade Range (specifically, the Shasta Cascade part of the range). The 10,457 ft (3,187 m) tall volcano sits on the north-east flank of the remains of Mount Tehama , a stratovolcano that was a thousand feet (305 m) higher than Lassen and 11 to 15 mi (18 to 24 km) wide at its base. [ 8 ]
A Cascade point is a projectile point associated with the Cascade phase, an ancient culture of Native Americans that settled in the Pacific Northwest that existed from 9000 or 10000 BC until about 5500 BC. The Cascade (Bipointed) point is typically narrow, lanceolate leaf shaped, with either a pointed or rounded base. [1]
An explosion 13,800 years ago left a 5 km (3.1 mi) diameter crater at Mary Bay on the edge of Yellowstone Lake (located in the center of the caldera). [ 18 ] [ 3 ] Currently, volcanic activity is exhibited via numerous geothermal vents scattered throughout the region, including the famous Old Faithful Geyser , plus recorded ground-swelling ...
As well as stone, projectile points were also made of worked wood, bone, antler, horn, or ivory; all of these are less common in the Americas. In regions where metallurgy emerged, projectile points were eventually made from copper , bronze , or iron , though the change was by no means immediate.
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Waterfalls are sometimes interchangeably referred to as "cascades" and "cataracts", though some sources specify a cataract as being a larger and more powerful waterfall [1] [4] [5] and a cascade as being smaller. [6] A plunge pool is a type of stream pool formed at the bottom of a waterfall. [7] A waterfall may also be referred to as a "foss ...
The Cascade volcanoes have had more than 100 eruptions over the past few thousand years, many of them explosive eruptions. [21] However, certain Cascade volcanoes can be dormant for hundreds or thousands of years between eruptions, and therefore the great risk caused by volcanic activity in the regions is not always readily apparent.
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