To him, it seemed, nothing in nature was worthwhile unless it was visited by a lot of people. If it was a pristine river, accessible only by floatplane or jeep or on foot, navigable only by whitewater raft or kayak or canoe, populated by wily fish such as steelhead that were difficult to catch, then it was no good. But if the river was transformed into a big flatwater reservoir off an interstate highway, with marinas and houseboats for rent—then it was worth something after all.