BISMARCK, N.D. - The front lines of the battle against the $3.8 billion Dakota Access pipeline are shifting away from the dwindling encampment in North Dakota.

Main opposing groups asked for activism to be spread around the U.S., a call heeded when a banner was unfurled during an NFL game on New Year's Day and when there was a demonstration at the Rose Parade in California.

Meanwhile, the camp's population is down to a few hundred.

NOVEMBER 30: Snow covers Oceti Sakowin Camp near the Standing Rock Sioux Reservation on November 30, 2016 outside Cannon Ball, North Dakota. Photo by Scott Olson/Getty Images

Indigenous Environmental Network organizer Dallas Goldtooth says opposition groups are seeing their request for broader activism materialize.

It's a strategy sociology professors say is advantageous and possibly allows for innovative ways to draw attention to the issue.

Opponents believe the four-state pipeline threatens drinking water and Native American cultural sites, which Texas-based developer Energy Transfer Partners denies.