Grand Prismatic Spring - Yellowstone National Park

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.

http://www.nps.gov/yell


Mailing Address
Not Available

Street Address
Not Available

Phone: 307-344-7381

The Grand Prismatic Spring is accessed by taking the Midway Geyser Basin boardwalk.

Season
May - September

Hours
Not Available

Payments
Not Available

Reservations
Not Available

Trail

Bird Hunting, Hiking, Mountain Biking, Photography, Sightseeing, Wildlife Viewing