DENVER -- The multibillion-dollar Dakota Access Pipeline project is at the center of a deep divide.
Supporters say it will be a major boost to the U.S. economy.
But members of the Standing Rock Sioux Tribe say the project is a danger to the environment.
People opposed to the project held a rally and march in Denver that ended at the Capitol on Thursday night.
"We're making a statement that our ancestors fought so that we shall remain," a protester said. "It's up to us to do the same for our future generations."
The 1,172-mile pipeline has a capacity to transport more than 500 million barrels of oil a day through the Dakotas, Iowa and Illinois.
Earlier this week, a federal judge ordered construction to be temporarily stopped on part of the pipeline. But tribe members said the partial restriction isn't enough to save their sacred land.
A judge is expected to make a ruling on the future of the pipeline project on Friday.