Hours from Standing Rock, N.D., is another reservation, in the the Bakken oilfield's sweet spot. Drilling has brought in millions of dollars, but the tribes have environmental worries, too.
Sophia Wilansky, a 21-year-old protester, has been hospitalized with a gruesome injury. Protesters say it was caused by a police concussion grenade; police say they have not been using grenades.
Many say the Dakota Access Pipeline resistance is beyond anything they've experienced before. But there are preludes in Native American history, and you don't have to look too far back to find them.