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The Umpqua River (/ ˈ ʌ m p k w ə / UMP-kwə) on the Pacific coast of Oregon in the United States is approximately 111 miles (179 km) long. One of the principal rivers of the Oregon Coast and known for bass and shad, the river drains an expansive network of valleys in the mountains west of the Cascade Range and south of the Willamette Valley, from which it is separated by the Calapooya ...
The dates of spring tides and neap tides, approximately seven days apart, can be determined by the heights of the tides on the classic tide tables: a small range indicates neaps and large indicates springs. This cycle of tides is linked to the phases of the moon, with the highest tides (spring tides) occurring near full moon and new moon.
The Umpqua River Light is a lighthouse on the Oregon Coast of the United States, located at the mouth of the Umpqua River on Winchester Bay, in Douglas County, ...
The Oregon Dunes are over 100,000 years old and stretch approximately 40 miles (64 km). The youngest dunes, which are the closest to the ocean, began forming about 7,000 years ago. Studies of individual sand grains show that these sands were carried down from the mountains by the Umpqua, Siuslaw, and other smaller rivers. [4]
The Umpqua National Forest was created by the United States Congress and approved by the 26th President, Theodore Roosevelt (1858-1919, served 1901-1909), on July 2, 1907. The U.S. Forest Service staff of the U.S. Department of Agriculture soon began building trails, constructing bridges, fighting fires, monitoring grazing, and erecting fire ...
It joins the Umpqua from the north across from Reedsport, about 6 miles (10 km) from the mouth of the Umpqua on the Pacific Ocean. [5] The river is named for Jedediah Smith, who in 1828 led a party of explorers from Utah overland to northern California and southern Oregon. From California, they traveled north to the Umpqua River, camping along ...
Winchester Bay, formerly Umpqua City, is an unincorporated community in Douglas County, Oregon, United States. For statistical purposes, the United States Census Bureau has defined Winchester Bay as a census-designated place (CDP). The census definition of the area may not precisely correspond to local understanding of the area with the same name.
Not all waters have had these facts determined, and so are of uncertain status. All water subject to tides are included. Note that the "Navigable Waters of the United States" listed in 33 CFR 329 are different than those listed as "Waters of the United States" in 33 CFR 328, which is the Clean Water Rule. However, all Navigable Waters, plus ...