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.
Department of the Interior Answers President's “United We Serve” Call for Volunteers on Treasured Landscapes
Last edited 4/25/2016
WASHINGTON, D.C.—In support of President Obama's United We Serve summer service initiative, the Department of the Interior today sponsored and participated in volunteer service activities in the nation's parks, refuges and other public lands. The events are a part of the United We Serve Energy and Environment issue week that runs August 3 through 9.
“Today I am again urging Interior employees and the general public to answer President Obama's call to perform volunteer service this summer by doing two things,” Secretary Salazar said. “The first request is to get outside and help protect our treasured landscapes, wildlife and cultural resources. The second is to take a young person with you into the outdoors and help them get to know these treasures.”
In the Washington, D.C. metropolitan area, for example, Interior today cosponsored volunteer service activities with the National Wildlife Federation at three sites. Volunteers removed invasive plant species with the National Park Service at Dyke Marsh Wildlife Preserve in Alexandria, Va. and with the Fish and Wildlife Service at Patuxent Research Refuge in Laurel, Md. At the Bureau of Land Management's Meadowood Special Recreation Area in Lorton, Va., they repaired a walking trail.
Secretary Salazar kicked off “United We Serve” in June in Shenandoah National Park, where he helped Student Conservation Association, Youth Conservation Corps and other volunteers removed invasive plants. He also has hiked and worked with other youth groups this summer at other parks, including Great Falls Park in Virginia and Anacostia Park in D.C.
“Children today spend half as much time outdoors as their parents and this has significant implications for our children's health, the economy and the future of American conservation,” Secretary Salazar said. “We must help our children get close to nature while helping the natural resources upon which their future depends.”
United We Serve is President Obama's call to service challenging all Americans to engage in sustained, meaningful community service. United We Serve runs from June 22 through a new National Day of Service on September 11 and is led by the Corporation for National and Community Service.
For more information on “United We Serve” and a video of Secretary Salazar at Shenandoah, see www.serve.gov.