Image: Always know what's on. Get our newsletter. Click Here
X
Themes
Featured Shows
  • Expedition Week
  • Hooked
  • Wild
  • Locked Up Abroad
  • Humanly Impossible
  • Ultimate Factories
  • Explorer
  • DogTown
  • Alaska State Troopers
  • Taboo
  • Dog Whisperer
  • Man-Made
  • Rescue Ink
  • Naked Science
  • Inside
  • Lockdown
  • World's Toughest Fixes
  • Shadow Soldiers
  • Dangerous Encounters
  • America's Wild Spaces
    • Specials
  • America Before Columbus
  • Titanic: How It Really Sank
  • Titanic: The Final Secret
  • Egyptian Secrets of the Afterlife
  • Hitler's Stealth Fighter
  • Hitler's Hidden City
  • Science of Winter
  • Gold Town
  • Drain the Ocean
  • Devil's Bible
  • Bizarre Dinosaurs
  • Hi-Tech War on Terror
  • Waking the Baby Mammoth
  • Hubble's Amazing Universe
  • Ghost Ships of the Black Sea
  • Giant Crystal Cave
    • National Geographic Channel

    Extreme Alaska Extreme Alaska

    Episodes
    XAll Episodes
    XAll Episodes
    XAll Episodes
    XAll Episodes
    XAll Episodes
    XAll Episodes
    separator

    Extreme Alaska: Building the Wild

     
    ^M
    Image: Expedition Week All This Week 9P et/pt
    Image: Whale attacks shark watch must-see video
    Image: For Dangerous Encounters: Undercover Hippo Dr. Brady Barr crawls into hippo suit

    FAKE HIPPO

    How will the real animals react?
    Watch Video

    HIGHLIGHTS:

    separator
    Image: Galapagos Island turtle

    EXPLORE GALáPAGOS

    Islands That Changed the Worldseparator

    Image: Jurassic Realm adventure NG Games

    FOSSIL HUNT

    Find bones to bring dinos to life.
    Play Game


    Newsletter Signup
     

    Explore the extremes of America's most rugged state, Alaska, and go inside Denali National Park, home of the tallest mountain in North America and over two million acres of wilderness. Alaska stays humming with mountains, volcanoes, glaciers and earthquakes.

    © National Geographic Channel 2009