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.
Secretary Jewell Visits Crissy Field in San Francisco, California
Secretary Jewell introduces a Public-Private initiative to engage the next generation on public lands. Jewell addressed the crowd at Crissy Field. Photo: US Department of the Interior
Secretary Jewell was joined at Crissy Field by local youth conservation corp members. Photo: US Department of the Interior
Secretary Jewell shakes hands with conservation corp volunteers at Crissy Field. Photo: US Department of the Interior
After the announcement, Secretary Jewell participated in a service experience with young members of local conservation corps. Photo: US Department of the Interior
Secretary Jewell volunteers alongside local conservation corps members at Crissy Field in the Golden Gate National Recreation Area. Photo: US Department of the Interior
On November 7th Secretary Jewell announced a new initiative to engage the next generation through education, employment, and volunteer opportunities on public lands. She was joined by leaders in San Franciso's business, health, education, and conservation communities for the announcement and for a service project at Crissy Field in the Golden Gate National Recreation Area.