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: National Park Service to Assist 200 Communities with River and Trail Projects
WASHINGTON—The National Park Service will help local communities implement more than 200 natural resource and recreational projects under the agency's Rivers, Trails and Conservation Assistance Program (RTCA), Secretary of the Interior Ken Salazar announced today – part of President Obama's America's Great Outdoors (AGO) initiative to establish a community-based, 21st century agenda for conservation, recreation, and reconnecting Americans to the outdoors.
“One of the major goals of President Obama's America's Great Outdoors initiative is to reconnect Americans to nature by expanding recreational opportunities,” Salazar said. “Through the RTCA program, the National Park Service will provide expertise and assistance to local communities that are building trails and undertaking other conservation and recreation projects."
Under the RTCA program, the National Park Service helps communities and neighborhoods to preserve valuable open spaces, revitalize nearby rivers, and develop trail and greenway networks. This year's projects were selected from the most competitive field of requests ever received by the agency.
Projects are locally conceived and initiated, with RTCA staff supporting community based recreation and conservation leaders. Each year, RTCA project partnerships contribute to the construction of 1,700 miles of trail, conservation of nearly 1,000 miles of river, and protection of more than 50,000 acres of open space.
More than 20 of the projects included in the RTCA project announcement today also were highlighted in the America's Great Outdoors 50-State report released by Secretary Salazar in November. The report listed more than 100 high-priority projects representing what states believe are among the best investments in the nation to support a healthy, active population, conserve wildlife and working lands, and create travel, tourism and outdoor-recreation jobs across the country. Interior is working closely with states and local communities to advance these priority projects as quickly as possible.