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.
Park Police Chief Teresa Chambers Returns to Interior
Office of the Secretary
Secretary Salazar applauds Chief Chambers return. Tami Heilemann - DOI
Secretary Salazar swears-in Teresa Chambers. Tami Heilemann - DOI
National Park Service Director Jonathan Jarvis and Teresa Chambers arrive at the Secretary's office. Tami Heilemann - DOI
Secretary Salazar welcomes Teresa Chambers. Tami Heilemann - DOI
Secretary Salazar congratulates Teresa Chambers on her return to duty. Tami Heilemann - DOI
Deputy Secretary David Hayes welcomes Teresa Chambers back to her post as Chief of the National Park Police. Tami Heilemann - DOI
Last edited 4/25/2016
WASHINGTON, D.C. — U.S. Secretary of the Interior Ken Salazar today swore in Teresa Chambers as the Chief of the U.S. Park Police. Secretary Salazar administered the oath of office to Chambers at a Swearing-In Ceremony at the Stewart Lee Udall Department of the Interior building.