Cranking hard, Dennis Porter humps his mountain bike over a tree root, splashes through a puddle and tears across a patch of deep, sandy silt along the Minnesota River bottom in Bloomington.
Porter is among hundreds of mountain bikers whose knobby tires have carved out a series of rugged trails beside the river. The 12-mile stretch between the Old Cedar Avenue Bridge and the Bloomington Ferry Bridge has become one of the most popular mountain-biking venues in the Twin Cities.
But the mountain bikers soon will have to share their leafy paradise, according to state officials who have long viewed this stretch of river land as a key piece of a growing state and regional trail system. The resulting debate over public land use is similar to those that have occurred across the country between advocates of different forms of recreation.
In the last legislative session, state lawmakers earmarked about $2.1 million to build a new trail through the area, which includes the Minnesota Valley National Wildlife Refuge. The same qualities that appeal to the mountain bikers should be made accessible to everyone, officials said.
"You're just excluding the overwhelming majority of users if you say that's all we can have," said state Rep. Ann Lenczewski, DFL-Bloomington, who represents the area and secured the funding for the trail. "This is a huge river valley, and it's my personal view that we hold it as a community, the larger public. And we all get to use it."
The Bloomington trail is a linchpin of the larger system, said Brett Feldman, executive director of the Parks & Trails Council of Minnesota, a group that raises money privately to buy land for public parks.
"This trail will eventually go to Fort Snelling," Feldman said. "And that connects to the Hiawatha Trail, and that connects to the Midtown Greenway, and that connects to the western suburbs. This particular trail is really the spine that connects everything together."
Mountain bikers have been riding along the river bottom for more than 20 years, said Porter, a lifelong Bloomington resident and a founding member of Minnesota Off Road Cyclists, a group with more than 900 members.