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National Recreation Area Grand Prismatic Spring
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Overview Service & Activities
Overview Service & Activities
About The Grand Prismatic Spring is 370 feet in diameter and the largest of the hot springs in Yellowstone. The center is an intense azure blue. The hot water produces algae to grow with colors ranging from orange and green to golden brown.
Contact
MAILING ADDRESS PO Box 168
Yellowstone National Park, WY 82190
CONTACT 307-344-7381
Details
SEASON May - September
SPECIAL DIRECTIONS The Grand Prismatic Spring is accessed by taking the Midway Geyser Basin boardwalk.
SERVICES Trail
ACTIVITIES Bird Hunting Hiking Mountain Biking Photography Sightseeing Wildlife Viewing

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