Another case of people talking through their hats! I live just south of North Cascades Nat. Park. The area is vastly wilderness in nature. The lower elevation, open areas are well traversed by roads, which numerous studies have shown keep grizzly bear numbers low! There are, likely, a few remaining grizzly bears in that area, although biologists have trouble locating them.
For the first time in nearly half a century, experts have confirmed that a hiker has photographed a living grizzly bear in the North Cascades of Washington.
www.seattletimes.com
A few years ago, I helped identify pictures of a sow with two cubs crossing a snow-covered saddle from a locally taken picture. I also know several biologists who retrieved grizzly bear hair from "hair snags" along international border.
On the other hand, Stehekin, at the southerly border of the Park has a very large black bear population. They are easily viewable in the abandoned fruit orchards at dusk. Stehekin had no phone service when we were there except for satellite service at the Park's Visitor Center. Access is by ferry (Lady of the Lake) or by sea plane or by hiking.
Locals also swear there are Sasquatch sightings regularly as well as a "sea monster" in Lake Chelan!