第二天，我们在黄石公园进行了野餐。
The next day we're at Yellowstone National Park, where we have a picnic.
早在1966年，生物学家就要求政府考虑将狼重新引入黄石公园。
As early as 1966, biologists asked the government to consider reintroducing wolves to Yellowstone Park.
黄石公园显然属于第二种类型，但是克里斯蒂安森就是找不到这个火山口。
Yellowstone obviously was of this second type, but Christiansen couldn't find the caldera anywhere.
就在这个时候，美国国家航空航天局决定通过拍摄黄石公园的照片来测试一些新的高空照相机。
Just at this time NASA decided to test some new high-altitude cameras by taking photographs of Yellowstone.
黄石公园并不是严格为生态目的而设立的；然而，“游乐场”这个名称并不是在邀请人们创建一个游乐园。
Yellowstone Park was not set aside strictly for ecological purposes; however, the title "pleasure ground" does not mean to create an amusement park.
当1973年《濒危物种法案》签署时，人们期望它能保护一批引人注目的动物，如秃头鹰和黄石公园的北美灰熊。
When the Endangered Species Act was signed in 1973, it was expected to protect charismatic fauna such as the bald eagle and Yellowstone's grizzly bears.
黄石公园是狼的家园。
狼对黄石公园很重要。
看着身边的野生动物和美丽的风景，我惊叹于狼给黄石公园带来的变化。
Looking at the wild animals and the beautiful sceneries around me, I am amazed at the changes the wolf has made to Yellowstone.
有十四匹灰狼在加拿大被捕，并被送往黄石公园。
Fourteen wolves were caught in Canada and transported to the Yellowstone.
今天，关于灰狼是否适应黄石公园的争论仍在继续。
Today, the debate continues over how well the grey wolf is fitting in at Yellowstone.
美国鱼类和野生动物管理局对黄石公园的狼群进行了仔细的监控和管理。
The US Fish and Wildlife Service carefully monitors and manages the wolf packs in Yellowstone.
黄石公园的草地上最常见的叉角羚。
黄石沙地马鞭草是黄石公园湖边特有的植物。
Yellowstone sand verbena are endemic to the Yellowstone's lakeshores.
北美大陆分水岭沿黄石公园西南部斜着流过。
The Continental Divide of North America runs diagonally through the southwestern part of the park.
黄石公园的大峡谷。
黄石公园上台地，猛犸温泉。
黄石公园野牛群是美国最大的公共的美洲野牛群。
The Yellowstone Park Bison herd is the largest public herd of American Bison in the United States.
小甲虫如何毁了黄石公园？
它同样出现在夏天，甚至出现在远至南方的黄石公园。
It paints summer skies as well, and can occur as far south as Yellowstone.
黄石公园。
早期，黄石公园允许，有时甚至鼓励游客们给各个熊喂食。
In the early history of the park, visitors were allowed, and sometimes even encouraged, to feed the bears.
1988年夏季期间，黄石公园的野火是历史以来最大的野火。
The wildfires during the summer of 1988 were the largest in the history of the park.
火山喷发出来的熔岩流和岩石占了黄石公园的大部分地区。
Lava flows and rocks from volcanic eruptions cover most of the land area of Yellowstone.
1988年的大森林火灾几乎烧掉了黄石公园将近三分之一的面积。
In the large forest fires of 1988, nearly one third of the park burnt.
黄石公园位于黄石河的源头，因而该公园以其历史名字而命名。
The park is located at the headwaters of the Yellowstone River, from which it takes its historical name.
黄石公园有许多娱乐机会，包括徒步旅行，露营，划船，钓鱼以及游览。
Yellowstone has numerous recreational opportunities, including hiking, camping, boating, fishing and sightseeing.
黄石公园辽阔的文化历史通过已发现的1000个考古遗址而记载下来了。
The expansive cultural history of the park has been documented by the 1,000 archeological sites that have been discovered.
黄石公园坐落在平均海拔为8000英尺（2400米）的黄石高原上。
The park sits on the Yellowstone Plateau, at an average elevation of 8,000 feet (2,400 m) above sea level.
当托马斯•毛伦在1871年海登地质勘察队时绘制的黄石公园的塔尔溪。
Thomas Moran painted Tower Creek, Yellowstone, while on the Hayden Geological Survey of 1871.
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