Located in southwestern Alberta on public land, directly north of the Waterton-Glacier International Peace Park, the Castle Wilderness is an area of spectacular beauty, and outstanding ecological importance. Although the entire Castle Wilderness is public land and two major public hearings by provincial agencies have each previously recommended its legal protection, a park has not come about. This is largely due to the sub-surface petroleum leases held by Shell Canada. Shell has the opportunity to be a catalyst for establishment of the entire Castle as a Wildland Provincial Park. Conservation groups from Alberta, other parts of Canada and the US are urging Shell to drop its interest in drilling and prove its environmental concerns by helping protect the Castle Wilderness.