Conservation proponents of more wilderness in the Gallatins say they are pro-grizzly%2C not anti-mountain biking%2C asserting that the area is more important for long-term survival of grizzlies in Greater Yellowstone than mountain bikers%27 need for more terrain. Grizzly photo courtesy Thomas D. Mangelsen %28mangelsen.com%29. Mountain biker photo courtesy Leslie Kehmeier %28www.flickr.com%252Fphotos%252Fmypubliclands%252F20753967159%29. Composite image produced by Gus O%27Keefe%252FMountain Journal