GemLand -- Arizona geology tours, Arizona stargazing with Sky Jewels(tm), the best in scenic resorts, Arizona Peridot, Four Peaks Amethyst, Native American jewelry, meteorites, and more.
GemLand -- Phoenix tours, Scottsdale Tours, Sedona tours, Arizona geology, gemological services, Four Peaks Amethyst, Arizona Peridot, Sky Jewels (R), Arizona stargazing, Navajo jewelry.Return to GemLand Home Page -- Gemological Services, Arizona Geology Tours, Sky Jewels (tm) Arizona Astronomy.Go to next GemLand Image.Go back to The Superstition Mountains and the landscape of central Arizona -- geology and sightseeing.Geological History of The Valley of the Sun and the Superstition Mountains in Arizona.Send an email link to this GemLand page to your friends!
The Boulders, Camelback Inn, Royal Palms, Four Seasons, Arizona Biltmore, Seasons Resort, Sanctuary, Sanctuary Camelback, Scottsdale Princess, geology, Gem Land, arizona, gems, geology, jewelry, Scottsdale, Phoenix, Mesa
geology tours, Sedona, Arizona geology, Superstition Mountains, geological tours, Arizona gemsGemLand, AZ, gemstones, geology, stargazing, Scottsdale, Phoenix, Tuzigoot
Roosevelt Dam, as seen in 1994, from above the Salt River, in the Superstition Mtns, Arizona.

   Roosevelt Dam, on Arizona's Salt River (Rio Salado), is shown here during its renovation in 1994.  This view is from the Apache Trail (SR88).
   Construction on the dam began in 1903, intending to provide a means of storing water for the Salt River Project, and for flood control through the river's valley.  Farther downstream, this river runs through Apache Junction, Mesa, Phoenix, and other cities in the Valley of the Sun.
  Geology has played an especially significant role in the dam's genesis.  Large stone blocks, quarried from the Precambrian Mescal Limestone nearby, form the core of the structure.
  Roosevelt Dam was completed in 1911, and at that time, it was the world's largest masonry dam -- 280 feet (84 meters) high, and 723 feet (216 meters) long at the top.
  The reservoir behind it, Roosevelt Lake, was then the world's largest artificial reservoir.  It was originally called "Salt River Dam Number 1", and not named after President Theodore Roosevelt until 1959.
  The renovation project was begun in 1989.  Eventually, the dam's exterior was resurfaced with concrete and its height raised 77 feet (23 meters) to 357 feet (107 meters).  This then increased the storage capacity of Roosevelt Lake by around 20%.
  The remodeling job was finished in 1996.

If you want more information about
the Superstition Mountains,
download these three FREE short GeoStories™
(PDF files, each <1MB):

Is the lure of Lost Gold is stronger than the lure of Found Gold?
More than one thinks so.

Gold Dust

Herein lies the Lost Dutchman's Gold -- the Superstition Wilderness.

One Piece at a Time

Weaver's Needle, in the Superstition Mtns of Arizona.

  Somewhere in the shadow of Weaver's Needle, in the Superstition Mountains, lies the Lost Dutchman's Gold.
  How did it get there?  The Needle, I mean.

If you think times here today are crazy, violent, and dangerous, read this and count your blessings.

Tuff Times

Battleship Mountain, in Central Arizona.

   Next View >>
   See the GeoHistory page if you want to know more about why the landscape looks the way it does, or return to the map of "The Superstition Mountains" for more view locations.
   You can also send this as an E-Postcard to your friends!

If you like
rocks, gems,
geology, hiking,
& stars in the sky,

to our

  There are many other scenic views around the Apache Junction and Globe areas, accessible from the map.

Gem-Land, astronomy, diamonds, geology, stargazing, Sedona, Phoenix, Tempe Gem-Land Adventures, arizona, gemstones, geology, stargazing, Paradise Valley, Phoenix, Tempe
Turquoise, arizona, stones, geology, Sedona, Scottsdale, Phoenix, Sun City