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.
These DOI FTR Implementing Instructions CFR 300, 301, 302, 303 and 304, Federal Travel Regulation, are issued to implement and prescribe the agency policies required by the Federal Travel Regulation. These FTR Implementing Instructions are written in plain language format and are arranged in a sequence to mirror the Federal Travel Regulation when possible. Bureaus and Offices may supplement these policies with additional administrative procedures and restrictions; however, the Federal Travel Regulation and the Departmental Implementing Instructions may not be modified to allow a greater allowance than prescribed.
The requirements of the Federal Travel Regulation and the DOI FTR Implementing Instructions may not be waived to increase the entitlement of an employee since it is the responsibility of the Department to ensure equal and equitable treatment of all employees who are required to perform official travel for the benefit of the Government. Authority to establish regulations does not carry an implied authority to waive the established regulation in selected cases (37 CG 820).
DOI FTR Implementing Instructions are maintained by the Office of Financial Management, Assistant Secretary - Policy, Budget and Management. Additional travel guidance can be accessed here.