0 Likes

Sylvan Lake, Black Hills, South Dakota, USA
USA

Sylvan Lake is a small lake impounded behind an even smaller dam built between the narrow walls of granite at the top of Sunday Gulch in the Black Hills of South Dakota.  Originally private land, the lake and surrounding area now make up the northwest section of Custer State Park and the western end of the Needles Highway scenic drive.  The park maintains a store, hotel and campground near the shores of the lake.  Several trailheads into the surrounding area start here.

Spires of granite rise above the ponderosa around the lake and nearby area.  Once covered by thousands of feet of overlying sediment, the Harney Peak granite was slowly uncovered after the Black Hills were lifted during a mountain building time that started over 60 million years ago and ended around 48 million years ago.   It is a very old granite dating back 1.7 billion years ago.

Copyright: John Roberts
Type: Spherical
Resolution: 18408x9204
Chargée: 26/09/2011
Mis à jour: 10/06/2014
Affichages ::

...


Tags: lake; reservoir; water; geology; outdoors; nature; public lands; black hills; evening
comments powered by Disqus

John Roberts
Sylvan Lake, Black Hills, South Dakota, USA
John Roberts
Harney Peak, Black Hills, South Dakota, USA
刘运增
Crazy Horse Memorial South Dakota. USA——The world's largest mountain statue
Thomas Stano
Black Hills
刘运增
American South Dakota Mount Rushmore National Memorial——a large scale sculpture of America's most prominent Presidents
Thomas Stano
Mt Rushmore 01
Thomas Stano
Mount Rushmore
John Roberts
Mount Rushmore National Memorial, South Dakota, USA
John Roberts
Pactola Lake, Black Hills, South Dakota, USA
刘运增
Bear Country USA South Dakota United States——wildlife Animal Park
Mike Vetter
Mickelson Trail - Mystic Trailhead
Mike Vetter
Lake Herman Loop
David Rowley
Sunrise At Tasman Glacier
Marcio Cabral
ST. Bernard Cave II
John Roberts
High Dune, Great Sand Dunes National Park, Colorado, USA
Honza Kudr
Blue Lagoon, Rangiroa - Tuamotu Islands
Amin Abedini
Forogh Al Molk House
Jaime Brotons
Aerial panorama avobe Punta Galera, Portinatx, Ibiza
Bill Edwards
F-14D Super Tomcat, Evergreen Aviation and Space Museum, McMinnville, OR
Willy Kaemena
SELJALANDSFOSS Waterfall
Zaellig
Bec ar Paunn
Dzmitry Lasko
Вид на Минск с колеса обозрения в парке Горького
NT360 Sanal Tur
Eminonu misir carsi yenicami
Ruediger Kottmann
Berlin - Holocaust memorial
John Roberts
Hop Valley Trail, Zion National Park, Utah, USA
John Roberts
Ramparts Overlook, Cedar Breaks National Monument, Utah, USA
John Roberts
Grandeur Peak (north side), Salt Lake City, Utah, USA
John Roberts
White Sands, Little Sahara Recreation Area, Utah, USA
John Roberts
Kasha-Katuwe National Monument, New Mexico, USA
John Roberts
Rio Grande Gorge State Park, New Mexico, USA
John Roberts
Glacier d Argentiere, Haute-Savoie, France
John Roberts
Spectra Point, Cedar Breaks National Monument, Utah, USA
John Roberts
Bonneville Shoreline Trail, Salt Lake City, Utah, USA
John Roberts
Pactola Lake, Black Hills, South Dakota, USA
John Roberts
White Rocks Formation, Cedar Mountain Wilderness, Skull Valley, Utah, USA
John Roberts
Yearling Trail, Ocala National Forest, Florida, USA
More About USA

The United States is one of the most diverse countries on earth, jam packed full of amazing sights from St. Patrick's cathedral in New York to Mount Hollywood California.The Northeast region is where it all started. Thirteen British colonies fought the American Revolution from here and won their independence in the first successful colonial rebellion in history. Take a look at these rolling hills carpeted with foliage along the Hudson river here, north of New York City.The American south is known for its polite people and slow pace of life. Probably they move slowly because it's so hot. Southerners tend not to trust people from "up north" because they talk too fast. Here's a cemetery in Georgia where you can find graves of soldiers from the Civil War.The West Coast is sort of like another country that exists to make the east coast jealous. California is full of nothing but grizzly old miners digging for gold, a few gangster rappers, and then actors. That is to say, the West Coast functions as the imagination of the US, like a weird little brother who teases everybody then gets famous for making freaky art.The central part of the country is flat farmland all the way over to the Rocky Mountains. Up in the northwest corner you can find creative people in places like Portland and Seattle, along with awesome snowboarding and good beer. Text by Steve Smith.