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.
Salazar Calls Two-Year ‘Time-Out' from New Mining Claims on Arizona Strip Watershed near Grand Canyon National Park
Department will evaluate more extended withdrawal of lands from new mining claims
Last edited 4/25/2016
WASHINGTON, D.C. – After carefully considering the issue of uranium mining near Grand Canyon National Park, Secretary of the Interior Ken Salazar has decided to segregate nearly 1 million acres of federal lands in the Arizona Strip for two years while the Department evaluates whether to withdraw these lands from new mining claims for an additional 20 years.
“I am calling a two-year ‘Time-Out' from all new mining claims in the Arizona Strip near the Grand Canyon because we have a responsibility to ensure we are developing our nation's resources in a way that protects local communities, treasured landscapes, and our watersheds,” said Secretary Salazar. “Over the next two years, we will gather the best science and input from the public, members of Congress, tribes, and stakeholders, and we will thoughtfully evaluate whether these lands should be withdrawn from new mining claims for a longer period of time.”
The segregated lands include 633,547 acres managed by Interior's Bureau of Land Management and 360,002 acres managed by the U.S. Forest Service. The Department of the Interior is the federal agency charged with segregating U.S. public lands for possible withdrawal. The lands are within portions of the Grand Canyon watershed next to Grand Canyon National Park in northern Arizona and contain significant environmental and cultural resources as well as substantial uranium deposits.
An iconic American landscape and World Heritage Site, Grand Canyon National Park encompasses 1.2 million acres on the Colorado Plateau. The park, which draws 4.4 million visitors each year, is home to numerous rare, endemic and specially protected plant and animal species and contains vast archeological resources and sites of spiritual and cultural importance to American Indians. The Colorado River and its tributaries that flow through the watersheds of Grand Canyon National Park supply water to agricultural, industrial, and municipal users, including the cities of Tucson, Phoenix, Las Vegas, Los Angeles, and San Diego.
Under the Secretary's conventional withdrawal procedures, the two-year segregation has essentially the same effect as a withdrawal -- it would prohibit new mining claims in the designated areas. Neither the segregation nor any withdrawal, however, would prohibit ongoing or future mining exploration or extraction operations on valid pre-existing claims. Those activities might proceed during segregation and any withdrawal. About 10,600 mining claims are located in the proposed withdrawal area and several current uranium mining operations await State of Arizona environmental permits. Neither the segregation nor the proposed withdrawal would prohibit any other authorized uses on these lands.
A notice published in today's Federal Register initiates a 90-day public comment period on the proposed withdrawal and segregation. Under the Federal Land Policy and Management Act, lands proposed for withdrawal are immediately segregated for up to two years during which a decision on the proposed withdrawal may be made.
During the two-year segregation, studies and analyses will be conducted to determine if the lands should be withdrawn to protect the area from new mining claims. In accordance with the National Environmental Policy Act, this process includes participation by the public, tribes, environmental groups, industry, state and local government, as well as other stakeholders.
These efforts will be undertaken under the leadership of the Bureau of Land Management in cooperation with the U.S. Forest Service, the U.S. Geological Survey, and the National Park Service and will be used in support of a final decision on the withdrawal.
By law, the Department can withdraw these lands for a maximum of 20 years. Only Congress can initiate a permanent withdrawal.