President Obama makes his way across the tarmac Monday to greet well-wishers upon arrival at Elmendorf Air Force Base in Anchorage, Alaska. Mandel Ngan/AFP/Getty Images hide caption

itoggle caption Mandel Ngan/AFP/Getty Images

President Obama is renaming Alaska's Mount McKinley in an effort to strengthen cooperation between the government and Alaska Native tribes. The peak is returning to its traditional name, Denali. Al Grillo/AP hide caption

itoggle caption Al Grillo/AP

Smoke billows from a forest fire in southern Saskatchewan, Canada, in late June. Thousands of Canadians have been forced to evacuate their homes because of wildland fires. AP hide caption

itoggle caption AP

Alaskans attend a rally in Anchorage for Medicaid expansion. Jonathan Casurella/Alaska Public Media hide caption

itoggle caption Jonathan Casurella/Alaska Public Media

Tim Meyers on his four-acre vegetable farm in southwestern Alaska. Behind him: an endless sea of tundra, and a glimpse of the town of Bethel. Eugenie Frerichs for NPR hide caption

itoggle caption Eugenie Frerichs for NPR

Leaders of the Alaska Cannabis Club share a joint at their medical marijuana dispensary in Anchorage. On Tuesday, Alaska became the third state in the nation to legalize recreational marijuana use. Mark Thiessen/AP hide caption

itoggle caption Mark Thiessen/AP

In the dog mushing world, 44-year-old Lance Mackey is like Michael Jordan. The sled dog racing veteran returns to the Yukon Quest this year. Katie Orlinsky for NPR hide caption

itoggle caption Katie Orlinsky for NPR

Sled dogs prefer below-zero weather for running, says musher Cody Strathe. Some mushers now train at night, when it's colder. Courtesy Yukon Quest hide caption

itoggle caption Courtesy Yukon Quest

Begich Towers is located at the edge of town. Photographer Reed Young wanted to capture the dry-docked boat in the foreground. "You see a ton of boats that are just scattered all over," he says. Reed Young/The California Sunday Magazine hide caption

itoggle caption Reed Young/The California Sunday Magazine

Valerie Davidson was appointed health commissioner by Alaska's Gov. Bill Walker to help him expand Medicaid in the state. She'll look for middle ground with Republicans to get it done, she says. Lori Townsend/Alaska Public Media hide caption

itoggle caption Lori Townsend/Alaska Public Media

Mike Myers is the roving village public safety officer serving southwest Alaska villages including Manokotak. Like many officers in rural Alaska, Myers doesn't carry a gun and often doesn't need one. Martin Kaste/NPR hide caption

itoggle caption Martin Kaste/NPR

Bush pilot John Bouker (right) and village public safety officer Mike Myers (left) outside Bouker's Cessna 207. Bouker transports Alaskan cops to remote areas and helps pick up prisoners. Martin Kaste/NPR hide caption

itoggle caption Martin Kaste/NPR

Republican U.S. Senate candidate Dan Sullivan greets supporters on election night in Anchorage. The as-yet-undecided race between Sullivan and Democratic incumbent Sen. Mark Begich was the hottest in the state. Ted S. Warren/AP hide caption

itoggle caption Ted S. Warren/AP

Oil, carried here by the Trans-Alaska Pipeline, is fundamental to the state's economy. But Alaskans also face the effects of climate change in their daily lives. Al Grillo/AP hide caption

itoggle caption Al Grillo/AP

Early results showed more than a 2-1 lead for a measure to make recreational marijuana use legal in Washington, D.C. A sign promoting the initiative is seen on a corner in the Adams Morgan neighborhood Tuesday. Allison Shelley/Getty Images hide caption

itoggle caption Allison Shelley/Getty Images