In summary, before 2010, the Chilcotins was not a park. Outdoor recreationalists could freely travel in the Chilcotins in the same way they can in the rest of British Columbia's crown land. After much of the Chilcotins became a BC Park, BC Parks proposes to limit outdoor recreationalists (with the majority of proposals targeting mountain-biking). Parks also proposes to drastically limit floatplane useage; the means by which some mountain bike and hiking day trips are conducted.
For more information and links to comment go here:
http://mtbtrails.ca/ Author of Locals' Guide to North Shore Rides and Locals' Guide to Fraser Valley Rides.