Chitina river, even after WSEP+P created was open to motorized boat traffic, but then there was also gold mining going on until the park service decided to play cute and came out with so many regulations nobody could keep up. Both the MaCarthy and Nabesna areas were mining centers in the past yet now mining would  completely destroy everything?
There was a claim owner at Nabesna that wanted to open a mine and have tours but park people with gold rings and catalytic converters on all their vehicles shut him down. Blood Diamonds?
Sheep and Squirrels remove vegetation that could cause erosion, should we get rid of them? 
What is the difference in appearance between the melting and receding Kennecott glacier and a gold miners tailings pile? Do people look at Alaskan glaciers melting and decide not to use hydrocarbons in their personal life?