SUPERIOR, WI (WTAQ) - Horseback riders staged a protest Sunday against a proposed oil pipeline from Superior to Alberta Canada.
A group called Honor the Earth held the event on Enbridge Energy's right of way near Superior, where the company has a refinery.
The group's director, Indian activist Winona LaDuke, cites possible environmental damage from the project -- which would increase the capacity of an existing pipeline by 120,000 barrels a day to around 570,000.
LaDuke says Enbridge should clean up old environmental messes, "before it tries to make a new one."
She was referring to last year's spill in Adams County, where 50,000 gallons leaked -- and a spill of 843,000 gallons of oil into the Kalamazoo River in Michigan in 2010.
Enbridge did not immediately comment on the protest.
The Alberta Clipper project has been on the books for a long time. In 2010, a federal judge in Minneapolis upheld permits for the pipeline.
Environmental groups accused the government at the time of not analyzing the effects of the project before granting its permits.
In Minnesota, the Public Utilities Commission is considering a petition from Enbridge for a "certificate of need" for the pipeline.