Exactly. This is why I support the implementation of hiking permits and lotteries. I am happy to restrict my hiking so long as I have as much of a shot of hiking in that fragile place as the next guy or gal. Whitney (California), Yosemite (California), Baxter (Maine) and Great Gulf (New Hampshire) are places that have or have had lottery systems to control the number of hikers or campers (or both).
IMO, discussions about "leave no trace" are sort of like arguing about gas milage for internal combustion vehicals. Better milage is better but you're still burning oil. "Leave no trace" may minmize impact but will not eliminate it. A million people in the Pemi over the course of a summer would crush it due to sheer numbers, regardless of whether or not "leave no trace" was strictly adhered to or not.
Yes.
The "goals" of USFS lands designated as Wilderness are best articulated in the statement of the Wilderness Act (below). Among other things, a Wilderness is defined to be an area "retaining its primeval character and influence".
I think, however, there is a flaw in the Act as stated. The act specifically prohibits permanant structures but also makes Wilderness Areas available for human travel. I think the assumption underlaying this is that "leave no trace" usage can be done at a level that allows the land to heal and hide the impact of that use. I've seen enough to think this is overly optimistic. Better IMO to accept some permanance of human use (e.g. trails, designated campsites) and localize the impact.
Well, this has certainly happened. I know that the USFS entirely shut down a Wilderness Area in CO about 10 years ago to let it recover. The problem had been over use.
Here's the quote from the Wilderness Act
-Dave
DEFINITION OF WILDERNESS
(c) A wilderness, in contrast with those areas where man and his own works dominate the landscape, is hereby recognized as an area where the earth and its community of life are untrammeled by man, where man himself is a visitor who does not remain. An area of wilderness is further defined to mean in this Act an area of undeveloped Federal land retaining its primeval character and influence, without permanent improvements or human habitation, which is protected and managed so as to preserve its natural conditions and which (1) generally appears to have been affected primarily by the forces of nature, with the imprint of man's work substantially unnoticeable; (2) has outstanding opportunities for solitude or a primitive and unconfined type of recreation; (3) has at least five thousand acres of land or is of sufficient size as to make practicable its preservation and use in an unimpaired condition; and (4) may also contain ecological, geological, or other features of scientific, educational, scenic, or historical value.