More important to me than buffer zones are proper safety techniques..
As we have seen, there really is no buffer zone when the pipelines break near the Yellowstone River..
Just kidding, remember when Dick Cheney wanted to plow the Absorokas into the Yellowstone caldron..
Lately, I've been staying in KOA Kamping Kabins just west of West Yellowstone..
The peaceful ride along the Madison R. is priceless and all roads within the Park are finished.