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.
Yukon River Subdistricts 4B and 4C Federal Public Waters Drift Gillnet Fishing is Closed
Last edited 4/27/2016
Subsistence fishing in Subdistricts 4B and 4C is currently closed. Federal regulations allow the use of drift gillnets for the subsistence harvest of Chinook salmon in Federal public waters in Yukon River Subdistricts 4B and 4C from June 10 through July 14. However, due to the poor Chinook salmon outlook, drastic conservation measures will be necessary to meet escapement objectives this season. Subsistence fishermen should not expect opportunities to directly harvest Chinook salmon with any gear type.
At this time no drift gillnet fishing in the Federal public waters of Subdistrict 4B and 4C for Chinook salmon is anticipated for the 2014 season. Additionally, to conserve Chinook salmon that may be caught incidentally, no drift gillnet fishing will be allowed for summer chum salmon utilizing 6-inch or less mesh gear.
Future Subdistrict 4B and 4C subsistence fishing times are subject to change depending upon salmon run strength. Subsistence fishermen should consult both State and Federal regulations or contact an Alaska Department of Fish and Game or U.S. Fish and Wildlife Service office before subsistence fishing.
The 2014 season will undoubtedly be another challenging year for Yukon River fishermen. ADFG and USFWS would like to extend thanks and appreciation to the fishermen of the Yukon River for their continuing efforts to conserve Chinook salmon when these stocks are so weak.