4 résultats pour "boulder"

• Boulder Dam.

• Las Vegas (Nevada) - geography.

  way for the Paiute people. In the late 1820s early Spanish explorers searching for water discovered an oasis in the region that now contains the city. They named theoasis “Las Vegas,” Spanish for “the meadows.” These expanses of wetlands, once irrigated by artesian waters carried under pressure from the nearby mountain ranges,were a main draw to southern Nevada until the 1940s. Las Vegas was an important stop along the Old Spanish Trail between Santa Fe, New Mexico, and southern California for m...

• Colorado - geography.

  Although the rivers of Colorado are navigable only by small boats, they are important as a source of irrigation water for use in Colorado and adjoining states. However,the water level of the rivers fluctuates seasonally and from year to year. The level is generally low in winter and high in spring and summer, during the runoff of meltedsnow from the mountains. Colorado has no large lakes of natural origin, but there are numerous small lakes in the mountains. The largest bodies of water in Colora...

• Colorado - USA History.

  Although the rivers of Colorado are navigable only by small boats, they are important as a source of irrigation water for use in Colorado and adjoining states. However,the water level of the rivers fluctuates seasonally and from year to year. The level is generally low in winter and high in spring and summer, during the runoff of meltedsnow from the mountains. Colorado has no large lakes of natural origin, but there are numerous small lakes in the mountains. The largest bodies of water in Colora...