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Yellowstone National ParkVisitors enjoy a stroll along a boardwalk near a thermal feature.
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Yellowstone National Park
Permitted Nature-related Tour Providers
Natural History Tours
Naturalist's World Dr. James Halfpenny P.O. Box 989 Gardiner MT 59030 (406)848-9458
Sandra Nykerk Photography Ms. Sandra Nykerk P.O. Box 87 Gardiner MT 59030 (406)848-7749
Grub Steak Expeditions Mr. Bob Richard P.O. Box 1013
 Cody WY
82414		 (307)527-6316
Summer Crowd at Old Faithful.  

Did You Know?
At peak summer levels, 3,500 employees work for Yellowstone National Park concessioners and about 800 work for the park.

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Last Updated: August 07, 2006 at 18:31 EST