I must agree with Sudbury.  Everywhere roads and motorized vehicle access is allowed the wilderness is destroyed.  there are plenty of opportunities to hunt and fish and do what ever with an ATV, 4x4, or snowmachine….we don't need to allow them everywhere.

wood needs to be harvested, this bring employment and money into the economy of the the north.  roads need to be constructed to remove this wood.  these roads are NOT needed to hunt and fish.  even without the use of motorized vehicles, walking on these roads is far easier than bushwacking.  Of course access by air and water is not restricted because they don't need roads for that, and that form of access has been available for 50, 60, or 70 years…and it's impact is relatively low compared to the easy/cheap access provided by modern 4x4 trucks and atv's.

snowmachines are a special case, because their use is limited to the winter months, and they by design do not affect the landscape as much as other motorized land based vehicles.  snowmachine use in the backcountry generally uses the same water ways and portages paddlers and boaters use – thus generally do not require new trails or pathways to be cut through the landscape. 4x4's and ATV's use roads and trails in all kinds of weather conditions, they contribute to errosion, and stream bed degradation.  just take a short trip on any trail that is regularly used by atv's and you will see ruts and mudholes – and many atv enthusiasts enjoy these, and there are many many places to do a bit of mudding.  a trail that is used by motorized vehicles on a regular basis quickly becomes useless for any other kind of access.  there are several trails in the region where I live, that I used to enjoy walking on, but now that is impossible – the deep ruts and mudholes never dry out, and make walking impossible.

in my experience 4x4 and atv enthusiasts care little about the road and trail conditions.  in deed it seems the worse the trails are the happier they are.