Mercury's surface in "enhanced color," a color scheme created to emphasize color differences. This is not what Mercury would look like to the human eye, but by applying mathematical analysis to images, color differences can be accentuated beyond those visible to a person.
Mount Rushmore National Memorial under construction.
The workers had to endure conditions that varied from blazing hot to bitterly cold and windy. Each day they climbed 700 stairs to the top of the mountain to punch-in on the time clock. Then 3/8 inch thick steel cables lowered them over the front of the 500-foot face of the mountain in a "bosun chair." Despite the dangers, no one was killed during the project.
Otters in Glacier Bay National Park and Preserve, Alaska.
The sea otter population of Glacier Bay has increased dramatically in the past 20 years. Ecologists consider sea otters a keystone species here. Otters consume vast quantities of clams, urchins, crabs, and other invertebrates and their presence creates ripples through the ecosystem. NPS photo.
Every day someone like you becomes a wildland wildfire fighter, a teacher, a trail-builder, a museum curator, or a park ranger. Discover your opportunities in national parks. Come to play. Come to learn. Come to serve. Develop your environmental leadership skills. Find a job. Be the next generation to preserve and protect these great places.
With more than 80% of Americans living in urban areas, urban parks are more important than ever. The father of American landscape architecture, Frederick Law Olmsted, said of urban parks:
It is one great purpose of the Park to supply to the hundreds of thousands of tired workers, who have no opportunity to spend their summers in the country, a specimen of God's handiwork that shall be to them, inexpensively, what a month or two in the White Mountains or the Adirondacks is, at great cost, to those in easier circumstances.
AMERICA'S GREAT OUTDOORS: Salazar, Jarvis Announce Designation of 54 New National Recreation Trails
Office of the Secretary
Announcement comes in advance of Saturday's National Trails Day
WASHINGTON, D.C. — Secretary of the Interior Ken Salazar and Director of the National Park Service Jonathan B. Jarvis today announced the designation of 54 trails as national recreation trails, adding almost 1,400miles of trails to the National Trails System. Spanning 23 states, the land and water trails provide opportunities for communities to connect to the great outdoors.
“From Alabama to Alaska, these national recreation trails provide a gateway to outdoor recreation in both urban and rural areas,” said Secretary Salazar. "I am proud to partner with communities across the nation to expand this extraordinary network of trails, allowing more Americans to enjoy the great outdoors.”
Today's announcement comes in advance of National Trails Day on Saturday, June 2, when hundreds of organized activities – including hikes, educational programs, bike rides, trail rehabilitation projects, festivals, paddle trips, and trail dedications – will take place around the country. A listing of activities is available at http://www.americanhiking.org/national-trails-day/.
“Today's trails join a network of more than 1,150 previously-designated trails that span more than 13,650 miles,.” said Director Jarvis. “As we celebrate National Trails Day on Saturday, I encourage everyone to explore a trail – new or old – and enjoy the natural world.”
The national trail system has become so extensive that if all the trails were laid end to end they would cross the entire country more than four times, offering millions of Americans opportunities to bike, hike, paddle and spend time with their family and friends outdoors, Jarvis noted.
National recreation trail designation recognizes existing trails and trail systems that link communities to recreational opportunities on public lands and in local parks across the nation. Each of the new national recreation trails will receive a certificate of designation, a letter of congratulations from Secretary Salazar, and a set of trail markers.
The national recreation trail program is jointly administered by the National Park Service and the USDA Forest Service in conjunction with a number of other federal and nonprofit partners, notably American Trails, which hosts the national recreation trails website at http://www.americantrails.org/nationalrecreationtrails.
The following 54 trails have been designated as national recreation trails. For more information on each trail, please click here.
Alabama State Lands Bartram Canoe Trail
Blevins Gap Nature Preserve Trail System
Dauphin Island Audubon Bird Sanctuary Trail System
Goose Pond Colony Nature and Walking Trail
Monte Sano Nature Preserve Trail System
Oak Mountain Red Trail
Scottsboro City Park Walking Trail
Sokol Park Mountain Bike Trail System
The Forever Wild Coon Creek Trail System
The Forever Wild Freedom Hills Trail System
The Forever Wild Shoal Creek Preserve Trail System
The Forever Wild Walls of Jericho Trail System
The Forever Wild Wehle Trail System
Wade Mountain Nature Preserve Trail System
Beaver Creek Water Trail
Aliso Creek Regional Bikeway, Riding and Hiking Trail