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.
The Department of the Interior museum collections, a subset of the larger personal property category, are managed and preserved under policy set in the Departmental Manual Part 411. The DOI Museum Property Directives are associated policy and procedure for all bureaus and offices of the Department. Other guidance is also provided.
Departmental Manual Part 411
Departmental Manual Part 411, "Identifying and Managing Museum Property," sets the policy for the management and preservation of museum property at the Department of the Interior. 411 DM was revised in September 2012.
DOI Museum Property Directives
The DOI Museum Property Directivesare policy and procedure documents that pertain to specific aspects of the management, preservation, and documentation of DOI museum collections. These documents are in various stages of preparation. Those that are approved by the Director, Office of Acquisition and Property Management, are available for download.
DOI Museum Property Handbooks
The DOI Museum Property Handbookswere written in the 1990s to provide guidance on meeting the policy set forth in Departmental Manual Part 411. They are fully available here until superseded by the DOI Museum Property Directives.
DOI Museum Property Guidance
DOI Museum Property Guidanceare documents that may be used by DOI curators, museum property management staff, and many others to assist with managing, preserving, and documenting DOI museum collections.