Subscribe Now! National Geographic Magazine $15
Home
Animals
Daily News
Environment
Games
Green Guide
History
Kids
Maps
Music
Photography
Science & Space
Travel & Cultures
Video
National Geographic Channel
Magazines
National Geographic
Traveler
Adventure
Shop
Subscriptions
TV & Film
Travel With Us
Our Mission
Visit our Online Shops
Books & Atlases
Clothing & Accessories
DVDs
Maps
Catalog Quick Shop

Sign up for free

Newsletters

Once a month
get new photos
and expert tips.

Sign up

Porsmork Valley, Iceland
Photo: Glacial valley in Iceland
WALLPAPER
Porsmork Valley is part of Iceland's rich landscape and host to thousands of plant species. Glacial valleys, such as this one, have wide valley floors usually littered with loose rock and boulders left behind by the massive moving ice slabs.
Photograph by Travelfile/Alamy

Related Photo Galleries
Photo: Grand Canyon in Arizona

Photo Gallery: Canyons

Photo: Sunrise over Coastguard Beach

Photo Gallery: Coastlines

Photo: Mount Kinabalu, Malaysia

Photo Gallery: Mountains

Photo: Steam train on Patagonia plain

Photo Gallery: Plains

Photo: Cavers descend an ice sheet

Photo Gallery: Caves

Photo: Utah's Little Grand Canyon

Photo Gallery: Plateaus

Earth Topics

SPECIAL ADVERTISING SECTION
Photo: 2009 Winner

Photo Contest

Find out who takes home the Grand Prize!

View Gallery
Photo: Glass of water

Take Quiz

Test your water knowledge.

Learn More

Earth Right Rail Promos

Order Human Footprint on DVD Today
Image: Cover of Human Footprint DVD

Discover the extraordinary impact that an average human life has on the world.

Buy the DVD

Support Conservation
Photo: Two penguins

Help conserve the world's natural resources.

Learn More

The Green Guide
Photo: Green flower

Get tips for helping the environment.

Visit The Green Guide