Yellowstone National Park, Wyoming
By: Madison Whisman
Grand Prismatic Spring
The Grand Prismatic Spring is the biggest hot spring in the US, and the 3rd largest in the world, after Frying Pan Lake in New Zealand and the Boiling Lake in Dominica.
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Old Faithful is a geyser that was named in 1870 during the Washburn-Langford-Doane Expedition and was the very first geyser in the whole park to get a name.
Grand Prismatic Spring
Climate of the Park
Winter: Temperatures often range from zero to 20F(-20 to -5C) throughout the day. Sub-zero temperatures over-night are common. The record low temperature is -66F (-54C). Snowfall is highly variable. While the average is 150 inches per year, it is not uncommon for higher elevations to get twice that amount
Spring and Autumn: Daytime temperatures range from the 30s to the 60s (0 to 20C) with overnight lows in the teens to single digits (-5 to -20C). Snow is common in the spring and fall with regular accumulations of 12" in a 24 hour period. At any time of year, be prepared for sudden changes. Unpredictability, more than anything else, characterizes Yellowstone's weather. Always be equipped with a wide range of clothing options. Be sure to bring a warm jacket and rain gear even in the summer.
Activities and Events at the National Park
What you can do:
Backcountry Camping & Hiking
Carry your backpack and stay in more than 300 backcountry campsites
Take in the view from the water
Enjoy the scenery on two wheels
Pitch your tent, or pull-up your RV, at one of 12 campgrounds
Cross Country Skiing and Snowshoeing
Hear the crunch of snow under your feet
Lace up your boots and explore more than 1,000 miles of trails
Cast your line for 16 species of fish
Guided Tours & Other Services
Businesses that have permits for day hiking, backpacking, bicycling, boating, fishing
Horseback Riding and Llama Packing
Bring your own stock or take a guided ride
Unpack your basket at 52 picnic areas throughout the park
Join a park ranger for walks, hikes, and campfire programs
Snowmobiles and Snowcoaches
Take a guided tour in the winter
Test your observation skills with 67 species of mammals, 330 species of birds, 4 amphibians, and 6 reptiles
Yellowstone Fun Facts
Yellowstone Park contains 1 jail.
Yellowstone National Park is an active super volcano.
Old Faithful erupts every 91 minutes
There are over 40 major waterfalls in Yellowstone