Posts Tagged ‘Black Canyon’

Fun Fact Friday, Number Eleven!

February 17, 2017

It may be winter, but the country’s national parks are still open.  Here are the best National Parks to visit during the winter:

  • Everglades National Park (Florida)
  • Bryce Canyon National Park (Utah)
  • Yellowstone National Park (Wyoming, Montana, Idaho)
  • Acadia National Park (Maine)
  • Saguaro National Park (Arizona)
  • Black Canyon of the Gunnison National Park (Colorado)
  • Sequoia and Kings Canyon National Parks (California)

Did you know that the National Park Service manages over 350 parks on 80 million acres of public land? (Real Fact #695)

Did you know that over half of the world’s geyser’s can be found in the Yellowstone National Park? (Real Fact #742)

Did you know that Manhattan Island was once home to as many different species as Yellowstone National Park? (Real Fact #684)



Marvel-ous Monday, Part Six!

July 11, 2011

Happy Monday!  Here is another engineering marvel, the Hoover Dam.  This structure spans the Colorado River (in the Black Canyon) between Arizona and Nevada, about 30 miles southeast of Las Vegas. The massive dam, built between 1931 and 1936 (during the Great Depression), is 726.4 feet deep, from foundation rock to the roadway on the crest of the dam. Hoover Dam generates, on average, about 4 billion kilowatt-hours of hydroelectric power each year for use in Nevada, Arizona and California — enough to serve 1.3 million people.  Once known as the Boulder Dam, it was dedicated on September 30, 1935 (by President Franklin Roosevelt).

Some other fun facts include (courtesy of the Bureau of Reclamation, Lower Colorado Region):

  • How much does it weigh? over 6,600,000 tons.
  • What type of Dam?  Concrete Arch Gravity (the water load is carried by both gravity action and horizontal arch action).
  • What’s the maximum water pressure at the base of the dam: 45,000 pounds per square foot.
  • How much concrete is in the dam?  Three and one-quarter million cubic yards. There are 4,360,000 cubic yards of concrete in the dam, powerplant and appurtenant works.

For more FAQs, check out the Bureau of Reclamation web site.