Wed, 23 Nov 2011 08:40:01 +0100 (Reuters) - Grizzly bear cubs play on the snow in the Hayden Valley in Yellowstone National Park, Wyoming, June 24, 2011. The bears still require protection under the Endangered Species Act, despite their growing numbers, because of changing climate factors the government failed to consider, a federal appeals court ruled on Tuesday. vREUTERS/Jim Urquhart/Files
The Yellowstone River Lower Falls is seen at sunrise in Yellowstone ...
Tue, 16 Aug 2011 07:30:01 +0200 (Reuters) - The Yellowstone River Lower Falls is seen at sunrise in Yellowstone National Park, Wyoming August 11, 2011. Picture taken August 11, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: ENVIRONMENT SOCIETY)
A tourist shades herself from the sun in Yellowstone National ...
Tue, 16 Aug 2011 07:00:02 +0200 (Reuters) - A tourist shades herself from the sun in Yellowstone National Park, Wyoming August 13, 2011. Picture taken August 13, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SOCIETY TRAVEL ENVIRONMENT)
A rainbow of light is seen at the base of Yellowstone River ...
Tue, 16 Aug 2011 00:20:01 +0200 (Reuters) - A rainbow of light is seen at the base of Yellowstone River Lower Falls in Yellowstone National Park, Wyoming August 11, 2011. Picture taken August 11, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: ENVIRONMENT IMAGES OF THE DAY)
File photo of the Yellowstone Lower Falls at the the Yellowstone ...
Mon, 04 Jul 2011 06:30:06 +0200 (AFP/File) - File photo of the Yellowstone Lower Falls at the the Yellowstone National Park, Wyoming on June 2, 2011. ExxonMobil said it was expanding its cleanup efforts following a pipeline spill of crude oil into the Yellowstone River in Montana and that the total amount released was between 750 and 1,000 barrels.(AFP/File/Mark Ralston)
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