Some 10 activists who had remained after the 2:00 pm deadline passed were arrested, according to the North Dakota Joint Information Center.
Earlier this month, President Donald Trump signed an executive order to revive the pipeline project. After the final permit was issued, construction on Dakota Access began almost immediately.
Native Americans and their supporters began leaving the federal land -- which was occupied by a population that swelled into the thousands at times -- singing traditional songs and banging drums.
State and tribal authorities planned to begin coordinated efforts to clean up the camp, removing garbage, structures, vehicles and other debris, in anticipation of seasonal flooding in the area.
Without the cleanup, the authorities said local waterways could be contaminated. More than 230 truckloads of debris had been cleared out as of Monday, officials said.
Campers burned some structures on their way out of the camp, in what they said were ceremonial rituals.
Some protesters had informed law enforcement that they would engage in passive resistance and expected to be arrested, Tom Iverson of the North Dakota Highway Patrol told local television station KFYR.
"People were free to leave," he said, adding that the evacuation was intended to "avoid an ecological disaster."
State authorities were also offering protesters bus fare to return home and hotel lodging for one night.
Native Americans and others began protesting at the camp starting last April, in opposition to the 1,886-kilometer oil pipeline. Its route runs under land the Standing Rock Sioux consider sacred and under the Missouri River, which is the source of drinking water for the tribe's reservation.
Disclaimer: No Business Standard Journalist was involved in creation of this content
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
