U.S. NATIONAL PARKS: 100 YEARS
U.S. NATIONAL PARKS: 100 YEARS
This May 30, 2016 photo shows the Channel Islands National Park visitors center in Ventura, Calif. (AP Photo/John Antczak)
In this photo taken, Saturday, May 21, 2011, a tourist walks along the boardwalk at Midway Geyser Basin inside Yellowstone National Park, Mont. As the summer travel season kicks off this Memorial Day weekend, many people may take one look at the price of an airplane ticket or a gallon of gas and decide to put off their dream vacation for one closer to home and closer to nature. (AP Photo/Julie Jacobson)
Trailriders negotiate a narrow path built among the pink cliffs of Bryce Canyon National Park, Utah, May 6, 1946. (AP Photo/National Park Service and U.P Railroad)
FILE- In this May 2, 2013 file photo, the sun’s rays strike the rocky coast of Acadia National Park on Mt. Desert Island in Maine. David Rockefeller, whose father John Rockefeller Jr., built the carriage roads that are now part of Acadia National Park, turns 100 on June 12, 2015. He will celebrate by transferring his family property at Little Long Pond in Seal Harbor to the Mount Desert Island & Garden Preserve, describing it as a “gift to all the people of Maine.” (AP Photo/Robert F. Bukaty, File)
FILE - This May 19, 2001 file aerial photo shows the towpath trail along the Ohio & Erie Canal, bottom right, in the Cuyahoga Valley National Park, emerging from the woodlands to a view of industrial Cleveland. At the lower left the Cuyahoga River winds its way toward Cleveland and Lake Erie. Cuyahoga was designated a national recreation area in 1974 and a national park in 2000. (AP Photo/Mark Duncan, File)
FILE - This August 2011 file photo shows Half Dome and Yosemite Valley in a view from Glacier Point at Yosemite National Park, Calif. A massive sheet of rock has fallen from the vertical face of Half Dome in Yosemite National Park, making one of the most popular routes attempted by climbers in North America even more challenging, park officials said Tuesday, July 7, 2015. (AP Photo/Tracie Cone, File)
FILE - In this June 19, 2014, file photo, bison graze near a stream in Yellowstone National Park in Wyoming. A proposal to transfer wild bison from Yellowstone National Park to a Montana American Indian reservation is meeting resistance from state livestock officials. Leaders of the Fort Peck Assiniboine and Sioux Tribes on Monday, Aug. 15, 2016, asked the state Board of Livestock to support moving 49 bison captured last winter. (AP Photo/Robert Graves, File)
FILE - In this March 30, 2001 file photo, a great blue heron fishes in the Cuyahoga River in the Cuyahoga Valley National Park in Brecksville, Ohio. There are several rookeries on the river, which is also home this year to an eagle’s nest. The park offers an opportunity to immerse yourself in nature just minutes from Cleveland and Akron, Ohio. (AP Photo/Amy Sancetta, File)
FILE - This September, 2009 file photo shows the Norris Geyser Basin in Yellowstone National Park, Wyo. Rangers are navigating a dangerous landscape where boiling water flows beneath a fragile rock crust as they search for a man who reportedly fell into a hot spring at Yellowstone National Park. Officials say the safety of park personnel was a top concern during the search in the popular Norris Geyser Basin. The man is presumed dead. (AP Photo/Beth Harpaz, File)
Cactus and shifting sands ? a new picture of Death Valley, whose arid sweep has claimed the lives of many a pioneer, shown Dec. 17, 1932. In the distance are the Funeral Mountains. Aside from an occasional tourist and prospector, there are few inhabitants in this region. (AP Photo)
In near freezing weather, U.S. President Franklin D. Roosevelt and Mrs. Eleanor Roosevelt stop to admire the Great Falls in Yellowstone Canyon, Yellowstone Park in Wyoming, Sept. 26, 1937. (AP Photo)
Fire ate out the inside of this giant sequoia in Sequoia National Park, California, shown Aug. 7, 1948, yet it bears foliage like a normal tree. (AP Photo)
Two women stand near Stove Pipe Wells in the vast sand dunes of Death Valley, California, USA around April 16, 1930. (AP Photo)
FILE - This Sept. 16, 2015, file photo, shows Zion National Park, near Springdale, Utah. Zion National Park says competitors in the Tour of Utah cycling race will ride through the park this year to commemorate the National Parks Service centennial, but they won’t race through it and spectators won’t be allowed. The Salt Lake Tribune reports that the decision comes after locals and conservationists bemoaned the idea, saying thousands of spectators will add to the crush of visitors already in Zion and the nearby town of Springdale. (AP Photo/Rick Bowmer, File)
One of the most famed vistas of Yosemite National Park on June 9, 1950 is from Glacier Point (3,000 feet above the valley) of the upper Yosemite Valley with half dome on the right and Mirror Lake central in the valley blow. Mirror Lake is the upper terminus of the Yosemite Valley highway. In the background Tenaya Creek and canyon winds its way off around Basket Dome to the upper reaches of the Park. AP Photo/Ernest Bennett)
FILE - In this Jan. 14, 2015, file photo, shows El Capitan in Yosemite National Park, Calif. The names of iconic hotels and other facilities in the world-famous Yosemite National Park will soon change in an ongoing battle over who owns the intellectual property, park officials said Thursday, Jan. 14, 2016. The move comes in an ongoing dispute with Delaware North, the company that lost a $2 billion bid, the National Park Services largest single contract, to run Yosemite’s hotels, restaurants and outdoor activities. (AP Photo/Ben Margot, File)
FILE - This Sept. 16, 2015, file photo, shows Zion National Park, near Springdale, Utah. Zion National Park officials say visitation has already grown by 11 percent this year and is on track to surpass 4 million visits. (AP Photo/Rick Bowmer, File)
This May 30, 2016 photo shows the Channel Islands National Park visitors center in Ventura, Calif. (AP Photo/John Antczak)
This May 30, 2016 photo shows the Channel Islands National Park visitors center in Ventura, Calif. (AP Photo/John Antczak)
In this photo taken, Saturday, May 21, 2011, a tourist walks along the boardwalk at Midway Geyser Basin inside Yellowstone National Park, Mont. As the summer travel season kicks off this Memorial Day weekend, many people may take one look at the price of an airplane ticket or a gallon of gas and decide to put off their dream vacation for one closer to home and closer to nature. (AP Photo/Julie Jacobson)
In this photo taken, Saturday, May 21, 2011, a tourist walks along the boardwalk at Midway Geyser Basin inside Yellowstone National Park, Mont. As the summer travel season kicks off this Memorial Day weekend, many people may take one look at the price of an airplane ticket or a gallon of gas and decide to put off their dream vacation for one closer to home and closer to nature. (AP Photo/Julie Jacobson)
Trailriders negotiate a narrow path built among the pink cliffs of Bryce Canyon National Park, Utah, May 6, 1946. (AP Photo/National Park Service and U.P Railroad)
Trailriders negotiate a narrow path built among the pink cliffs of Bryce Canyon National Park, Utah, May 6, 1946. (AP Photo/National Park Service and U.P Railroad)
FILE- In this May 2, 2013 file photo, the sun’s rays strike the rocky coast of Acadia National Park on Mt. Desert Island in Maine. David Rockefeller, whose father John Rockefeller Jr., built the carriage roads that are now part of Acadia National Park, turns 100 on June 12, 2015. He will celebrate by transferring his family property at Little Long Pond in Seal Harbor to the Mount Desert Island & Garden Preserve, describing it as a “gift to all the people of Maine.” (AP Photo/Robert F. Bukaty, File)
FILE- In this May 2, 2013 file photo, the sun’s rays strike the rocky coast of Acadia National Park on Mt. Desert Island in Maine. David Rockefeller, whose father John Rockefeller Jr., built the carriage roads that are now part of Acadia National Park, turns 100 on June 12, 2015. He will celebrate by transferring his family property at Little Long Pond in Seal Harbor to the Mount Desert Island & Garden Preserve, describing it as a “gift to all the people of Maine.” (AP Photo/Robert F. Bukaty, File)
FILE - This May 19, 2001 file aerial photo shows the towpath trail along the Ohio & Erie Canal, bottom right, in the Cuyahoga Valley National Park, emerging from the woodlands to a view of industrial Cleveland. At the lower left the Cuyahoga River winds its way toward Cleveland and Lake Erie. Cuyahoga was designated a national recreation area in 1974 and a national park in 2000. (AP Photo/Mark Duncan, File)
FILE - This May 19, 2001 file aerial photo shows the towpath trail along the Ohio & Erie Canal, bottom right, in the Cuyahoga Valley National Park, emerging from the woodlands to a view of industrial Cleveland. At the lower left the Cuyahoga River winds its way toward Cleveland and Lake Erie. Cuyahoga was designated a national recreation area in 1974 and a national park in 2000. (AP Photo/Mark Duncan, File)
FILE - This August 2011 file photo shows Half Dome and Yosemite Valley in a view from Glacier Point at Yosemite National Park, Calif. A massive sheet of rock has fallen from the vertical face of Half Dome in Yosemite National Park, making one of the most popular routes attempted by climbers in North America even more challenging, park officials said Tuesday, July 7, 2015. (AP Photo/Tracie Cone, File)
FILE - This August 2011 file photo shows Half Dome and Yosemite Valley in a view from Glacier Point at Yosemite National Park, Calif. A massive sheet of rock has fallen from the vertical face of Half Dome in Yosemite National Park, making one of the most popular routes attempted by climbers in North America even more challenging, park officials said Tuesday, July 7, 2015. (AP Photo/Tracie Cone, File)
FILE - In this June 19, 2014, file photo, bison graze near a stream in Yellowstone National Park in Wyoming. A proposal to transfer wild bison from Yellowstone National Park to a Montana American Indian reservation is meeting resistance from state livestock officials. Leaders of the Fort Peck Assiniboine and Sioux Tribes on Monday, Aug. 15, 2016, asked the state Board of Livestock to support moving 49 bison captured last winter. (AP Photo/Robert Graves, File)
FILE - In this June 19, 2014, file photo, bison graze near a stream in Yellowstone National Park in Wyoming. A proposal to transfer wild bison from Yellowstone National Park to a Montana American Indian reservation is meeting resistance from state livestock officials. Leaders of the Fort Peck Assiniboine and Sioux Tribes on Monday, Aug. 15, 2016, asked the state Board of Livestock to support moving 49 bison captured last winter. (AP Photo/Robert Graves, File)
FILE - In this March 30, 2001 file photo, a great blue heron fishes in the Cuyahoga River in the Cuyahoga Valley National Park in Brecksville, Ohio. There are several rookeries on the river, which is also home this year to an eagle’s nest. The park offers an opportunity to immerse yourself in nature just minutes from Cleveland and Akron, Ohio. (AP Photo/Amy Sancetta, File)
FILE - In this March 30, 2001 file photo, a great blue heron fishes in the Cuyahoga River in the Cuyahoga Valley National Park in Brecksville, Ohio. There are several rookeries on the river, which is also home this year to an eagle’s nest. The park offers an opportunity to immerse yourself in nature just minutes from Cleveland and Akron, Ohio. (AP Photo/Amy Sancetta, File)
FILE - This September, 2009 file photo shows the Norris Geyser Basin in Yellowstone National Park, Wyo. Rangers are navigating a dangerous landscape where boiling water flows beneath a fragile rock crust as they search for a man who reportedly fell into a hot spring at Yellowstone National Park. Officials say the safety of park personnel was a top concern during the search in the popular Norris Geyser Basin. The man is presumed dead. (AP Photo/Beth Harpaz, File)
FILE - This September, 2009 file photo shows the Norris Geyser Basin in Yellowstone National Park, Wyo. Rangers are navigating a dangerous landscape where boiling water flows beneath a fragile rock crust as they search for a man who reportedly fell into a hot spring at Yellowstone National Park. Officials say the safety of park personnel was a top concern during the search in the popular Norris Geyser Basin. The man is presumed dead. (AP Photo/Beth Harpaz, File)
Cactus and shifting sands ? a new picture of Death Valley, whose arid sweep has claimed the lives of many a pioneer, shown Dec. 17, 1932. In the distance are the Funeral Mountains. Aside from an occasional tourist and prospector, there are few inhabitants in this region. (AP Photo)
Cactus and shifting sands ? a new picture of Death Valley, whose arid sweep has claimed the lives of many a pioneer, shown Dec. 17, 1932. In the distance are the Funeral Mountains. Aside from an occasional tourist and prospector, there are few inhabitants in this region. (AP Photo)
In near freezing weather, U.S. President Franklin D. Roosevelt and Mrs. Eleanor Roosevelt stop to admire the Great Falls in Yellowstone Canyon, Yellowstone Park in Wyoming, Sept. 26, 1937. (AP Photo)
In near freezing weather, U.S. President Franklin D. Roosevelt and Mrs. Eleanor Roosevelt stop to admire the Great Falls in Yellowstone Canyon, Yellowstone Park in Wyoming, Sept. 26, 1937. (AP Photo)
Fire ate out the inside of this giant sequoia in Sequoia National Park, California, shown Aug. 7, 1948, yet it bears foliage like a normal tree. (AP Photo)
Fire ate out the inside of this giant sequoia in Sequoia National Park, California, shown Aug. 7, 1948, yet it bears foliage like a normal tree. (AP Photo)
Two women stand near Stove Pipe Wells in the vast sand dunes of Death Valley, California, USA around April 16, 1930. (AP Photo)
Two women stand near Stove Pipe Wells in the vast sand dunes of Death Valley, California, USA around April 16, 1930. (AP Photo)
FILE - This Sept. 16, 2015, file photo, shows Zion National Park, near Springdale, Utah. Zion National Park says competitors in the Tour of Utah cycling race will ride through the park this year to commemorate the National Parks Service centennial, but they won’t race through it and spectators won’t be allowed. The Salt Lake Tribune reports that the decision comes after locals and conservationists bemoaned the idea, saying thousands of spectators will add to the crush of visitors already in Zion and the nearby town of Springdale. (AP Photo/Rick Bowmer, File)
FILE - This Sept. 16, 2015, file photo, shows Zion National Park, near Springdale, Utah. Zion National Park says competitors in the Tour of Utah cycling race will ride through the park this year to commemorate the National Parks Service centennial, but they won’t race through it and spectators won’t be allowed. The Salt Lake Tribune reports that the decision comes after locals and conservationists bemoaned the idea, saying thousands of spectators will add to the crush of visitors already in Zion and the nearby town of Springdale. (AP Photo/Rick Bowmer, File)
One of the most famed vistas of Yosemite National Park on June 9, 1950 is from Glacier Point (3,000 feet above the valley) of the upper Yosemite Valley with half dome on the right and Mirror Lake central in the valley blow. Mirror Lake is the upper terminus of the Yosemite Valley highway. In the background Tenaya Creek and canyon winds its way off around Basket Dome to the upper reaches of the Park. AP Photo/Ernest Bennett)
One of the most famed vistas of Yosemite National Park on June 9, 1950 is from Glacier Point (3,000 feet above the valley) of the upper Yosemite Valley with half dome on the right and Mirror Lake central in the valley blow. Mirror Lake is the upper terminus of the Yosemite Valley highway. In the background Tenaya Creek and canyon winds its way off around Basket Dome to the upper reaches of the Park. AP Photo/Ernest Bennett)
FILE - In this Jan. 14, 2015, file photo, shows El Capitan in Yosemite National Park, Calif. The names of iconic hotels and other facilities in the world-famous Yosemite National Park will soon change in an ongoing battle over who owns the intellectual property, park officials said Thursday, Jan. 14, 2016. The move comes in an ongoing dispute with Delaware North, the company that lost a $2 billion bid, the National Park Services largest single contract, to run Yosemite’s hotels, restaurants and outdoor activities. (AP Photo/Ben Margot, File)
FILE - In this Jan. 14, 2015, file photo, shows El Capitan in Yosemite National Park, Calif. The names of iconic hotels and other facilities in the world-famous Yosemite National Park will soon change in an ongoing battle over who owns the intellectual property, park officials said Thursday, Jan. 14, 2016. The move comes in an ongoing dispute with Delaware North, the company that lost a $2 billion bid, the National Park Services largest single contract, to run Yosemite’s hotels, restaurants and outdoor activities. (AP Photo/Ben Margot, File)
FILE - This Sept. 16, 2015, file photo, shows Zion National Park, near Springdale, Utah. Zion National Park officials say visitation has already grown by 11 percent this year and is on track to surpass 4 million visits. (AP Photo/Rick Bowmer, File)
FILE - This Sept. 16, 2015, file photo, shows Zion National Park, near Springdale, Utah. Zion National Park officials say visitation has already grown by 11 percent this year and is on track to surpass 4 million visits. (AP Photo/Rick Bowmer, File)