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 Announces Transfer of Lighthouses in Michigan and New York to Local Ownership
WASHINGTON -- Secretary of the Interior Ken Salazar today announced the transfer of historic lighthouses on Lake Michigan and Long Island Sound to a local government and a local historical organization under the National Historic Lighthouse Preservation Act (NHLPA).
“Lighthouses play an integral role in our nation's maritime history and in the cultural heritage of nearby communities,” Secretary Salazar said. “With these transfers, we are ensuring that these great icons are preserved and open to the public for generations to come as places for visitors to learn about our maritime heritage.”
NHLPA was enacted in 2000 as a means to transfer historic light stations no longer in use by the Coast Guard out of federal hands while guaranteeing their preservation and public use. A model of inter-agency cooperation, the NHLPA program is a partnership between the Coast Guard, the General Services Administration, and the National Park Service. Since 2000, more than 60 historic light stations have been transferred at no cost to qualified entities.
The City of Frankfort, Michigan, will take ownership of the Frankfort North Breakwater Lighthouse on Lake Michigan. Constructed in 1932, the 67-foot tall, square, steel beacon marks the entrance to the city's harbor, a historic shipping point for lumber and other raw materials on Lake Michigan. The lighthouse was listed in the National Register of Historic Places in 2005.
The Huntington Lighthouse Preservation Society, a non-profit organization that has been associated with preserving the Huntington Harbor Light Station (formerly Lloyd Harbor Light Station) for more than 20 years, will take ownership of the historic lighthouse on Long Island Sound in New York. While a lighthouse has marked the entrance to this harbor off of the sound since 1857, the present structure was constructed in 1912. The Huntington Harbor Light Station was listed in the National Register of Historic Places in 1989.
Applications for the lighthouses were reviewed by the National Park Service to ensure that the organizations have feasible and appropriate preservation and public use plans. The Secretary of the Interior makes the final decision on the disposition of the lighthouses.
“The National Historic Lighthouse Preservation Act encourages partnerships for the preservation and continued public enjoyment of an important part of our nation's maritime history,” said National Park Service Director Jonathan B. Jarvis. “These transfers fulfill the purpose of the act and help preserve the richness of our nation's maritime history and culture.”
Salazar has informed the Administrator of the General Services Administration to begin the process of transferring the lights to the organizations.