April 22 is Earth Day, and Google has devoted its iconic Doodle design to displaying aerial images from its Google Earth software. The photos, which range from an alpine landscape in the French Alps to a portion of the Colorado River in southeast Utah, appear to form the letters that spell out “Google.”

The photos are drawn from sources including Airbus and the National Oceanic and Atmospheric Administration. 

Google posted the source of each photo on a page devoted to the Doodle:

G: The low-lying tropical paradise of the Maldives. This beautiful island nation comprises twenty ring-shaped coral reef formations called atolls. These atolls enclose vibrant lagoons, and the very word atoll originates from the local Dhivehi language.

O: The high-altitude alpine landscape in the Hautes-Alpes department of the French Alps. This stunning corner of the world features rocky, forested terrain, distinct alpine ecosystems shaped by harsh conditions, and diverse wildlife including chamois, marmots, and golden eagles.

O: Quebec’s rugged Côte-Nord. This untamed stretch, where the boreal forest hugs the St. Lawrence River from Tadoussac to Blanc-Sablon, is home to tough plants and animals that thrive in the subarctic frontier.

G: The Mendoza Province of western Argentina. East of the Andes, this arid to semi-arid region is sustained by vital rivers like the Mendoza, Tunuyán, Diamante, and Atuel, which originate in the mountains.

L: Southeastern Utah, United States of America. Uplifted by tectonic forces, this corner of the Colorado Plateau features deep canyons carved by the Colorado River, with mesas and buttes rising from layered rock. Near Lake Powell, desert plants have adapted to endure the arid climate.

E: A remote inland area of western New South Wales, Australia. Home to a classic dry Australian landscape, this area features flat to gently rolling land with drought-resistant plants like spinifex and eucalyptus. Local wildlife is well-suited to the harsh climate across this remote land that’s largely used for grazing livestock. 

Google Doodles began in 1998 and have included animations, games, and lots of Easter eggs. The company keeps a searchable database of its past Doodles.

For Earth Day, you can learn more about recycling with this quiz, engage in some feel-good activities and shop for some Earth-friendly products.