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.
Established by Congress in the mid 1800s and managed by the Government Publishing Office since 1895, the Federal Depository Library Program has collected, organized, and preserved information produced by all parts of the Federal government, distributed this information to designated libraries across the country, and assisted people in locating and using it.
The mission of Federal depository libraries is to provide local, free access to information from the Federal government in an impartial environment. Federal depository libraries select materials from lists of subjects provided by the Government Publishing Office. The depository library must then provide the public with free and uninhibited access to these selected materials.
Federal depository collections are available for use by everyone. Documents in print and electronic formats are available on a wide range of topics relevant to the general public and to professionals, researchers, and students in a variety of fields. Selections for inclusion into the collections of individual depository libraries are made according to the needs of each library’s users.
The U.S. Department of the Interior Library collects transcripts of House and Senate hearings, committee prints, and other Congressional materials. The library also collects titles produced by executive agencies on science and technology, nature and wildlife, geology, energy, the environment, Native Americans, and much more.
Currently, the U.S. Department of the Interior Library selects over 600 separate item types (or item numbers) from the Federal Depository Library Program for inclusion in the Library's collections.
Catalog of U.S. Government Publications
The Catalog of U.S. Government Publications (CGP) is the finding tool for electronic and print publications from the legislative, executive, and judicial branches of the U.S. government. These publications make up the National Bibliography of U.S. Government Publications. The CGP contains descriptive records for historical and current publications and provides direct links to those that are available online.
More than 500,000 records generated since July 1976 are contained in the CGP and it is updated daily. The catalog will grow to include records for publications dating back to the late 1800s, making the CGP the central point for locating new and historical Government publications.
The CGP was originally the online counterpart of the Monthly Catalog of United States Government Publications, which had been printed since the passage of the Printing Act of 1895. The print version of the Monthly Catalog was discontinued with the December 2004 issue.
For publications issued prior to 1976, the printed Monthly Catalog should be consulted. Print editions of the Monthly Catalog and many of the publications indexed in it may be available at the larger depository libraries.
Direct links to online versions of publications from the cataloging record
"Locate a Library" feature within each record to find a nearby Federal depository where a particular publication or expert assistance can be found
Robust search engine
Basic, Advanced, and Expert search options
Searches can be narrowed to specific collections or formats, such as maps, Congressional, or Internet publications
Search results or selected records can be e-mailed
Locating Other Federal Depository Libraries
Everyone is welcome to visit Federal depository libraries and use their collections. Federal depository libraries are located in nearly every U.S. Congressional district. Altogether, there are almost 1,350 sites across the United States and its territories.
The Government Publishing Office has designated some Federal publications as belonging to the Federal Depository Library Program's Basic Collection. Publications included in the Basic Collection are vital sources of information that support the public's right to know about the workings and essential activities of their Federal Government. All titles in the Basic Collection are available online, and some are available in print in the Interior Library.
Congressional Research Service Reports (University of North Texas Libraries) - The Congressional Research Service is the public policy research arm of Congress. Reports were downloaded from a variety of web sites that host CRS reports, either currently or in the past. Many CRS reports are updated on a regular basis, and this site includes all versions of the reports that could be located.
Documents Data Miner 2 - Use this search engine to find out which depository libraries have selected publications of interest to you. It combines files from the latest version of the List of Classes of United States Government Publications available for Selection by Depository Libraries, the Item Lister’s Current Item Number Selection Profiles for Depository Libraries, and the Federal Depositories Library Directory. Available information on inactive and discontinued items has been added to the database.
Historical Census Browser - Developed and maintained by the University of Virginia Geospatial and Statistical Data Center. On this site you can examine state and county topics for individual census years (1790-1960), examine state and county topics over time, and produce tables, sort data, create ratios, and generate maps.