DamA dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations.
WintuThe Wintu (also Northern Wintun) are Native Americans who live in what is now Northern California. They are part of a loose association of peoples known collectively as the Wintun (or Wintuan). Others are the Nomlaki and the Patwin. The Wintu language is part of the Penutian language family. Historically, the Wintu lived primarily on the western side of the northern part of the Sacramento Valley, from the Sacramento River to the Coast Range.
WintunThe Wintun are members of several related Native American peoples of Northern California, including the Wintu (northern), Nomlaki (central), and Patwin (southern). Their range is from approximately present-day Lake Shasta to San Francisco Bay, along the western side of the Sacramento River to the Coast Range. Each of these tribes speak one of the Wintuan languages. Linguistic and archaeological evidence suggests that the Wintun people probably entered the California area around 500 AD from what is now southern Oregon, introducing bow and arrow technology to the region (Golla 2011: 205).
Pacific NorthwestThe Pacific Northwest (PNW), sometimes referred to as Cascadia, is a geographic region in western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though no official boundary exists, the most common conception includes the U.S. states of Oregon, Washington, and Idaho, and sometimes the Canadian province of British Columbia. Some broader conceptions reach north into Alaska and Yukon, south into northern California, and east into western Montana.
WetlandWetlands, or simply a wetland, is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The primary factor that distinguishes wetlands from terrestrial land forms or water bodies is the characteristic vegetation of aquatic plants, adapted to the unique anoxic hydric soils.
First transcontinental railroadAmerica's first transcontinental railroad (known originally as the "Pacific Railroad" and later as the "Overland Route") was a continuous railroad line constructed between 1863 and 1869 that connected the existing eastern U.S. rail network at Council Bluffs, Iowa, with the Pacific coast at the Oakland Long Wharf on San Francisco Bay. The rail line was built by three private companies over public lands provided by extensive US land grants. Building was financed by both state and US government subsidy bonds as well as by company-issued mortgage bonds.
Lake TahoeLake Tahoe (ˈtɑːhoʊ; Washo: Dáʔaw) is a freshwater lake in the Sierra Nevada of the Western United States, straddling the border between California and Nevada. Lying at above sea level, Lake Tahoe is the largest alpine lake in North America, and at it trails only the five Great Lakes as the largest by volume in the United States. Its depth is , making it the second deepest in the United States after Crater Lake in Oregon (). The lake was formed about two million years ago as part of the Lake Tahoe Basin, and its modern extent was shaped during the ice ages.
Economy of CaliforniaThe economy of the State of California is the largest in the United States, with a $3.598 trillion gross state product (GSP) as of 2022. It is the largest sub-national economy in the world. If California were a sovereign nation (2022), it would rank in terms of nominal GDP as the world's fifth largest economy, behind Germany and ahead of India. Additionally, California's Silicon Valley is home to some of the world's most valuable technology companies, including Apple, Alphabet, and Nvidia.
