Longtime advocates for Native American issues, the Grammy-winning Indigo Girls will headline a concert on Monday in Minnesota in support of water protection against the Enbridge's Pipeline 3.

"We stand with the water protectors fighting this toxic, unnecessary, destructive pipeline," Indigo Girls Amy Ray and Emily Saliers said in a statement. "No tar sands pipeline through treaty-projected Anishinaabe land!"

The popular pop duo will be joined by Native American singers Annie Humphrey and Sharon Day for the "Protect the Water Concert" at 4 p.m. Monday at Water Protector Welcome Center, just north of Palisade, Minn., in Aitkin County.

The concert will be livestreamed on the Facebook pages of Water Protector Welcome Center and Honor the Earth, an organization that Indigo Girls cofounded 27 years ago with environmental activist Winona LaDuke.

Those organizations as well as various environmental groups and Native American tribes are fighting to safeguard the waters and wild rice of northern Minnesota from the $3 billion-plus, 340-mile pipeline. On June 14, the Minnesota Court of Appeals affirmed the state's approval of Calgary-based Enbridge's Line 3 project.

There is room for 250 people to attend the "Protect the Water Concert" in person. Reservations are encouraged at welcomewaterprotectors.com/indigogirlsconcert. Tickets are free but donations are accepted.

Twitter: @JonBream • 612-673-1719