Grouse Mountain Campground is located on Shady Pass road, 6 miles from where the road turns to dirt. The road is generally in pretty good shape, and it's possible to bring up small rugged camping trailers to this campground. The campground features 4 campsites with fire pits and picnic tables, and they are reasonably spread apart within the campground. There are two pit toilets located near the campsites, and while the campground sits on a ridge off of Grouse Mountain above Lake Chelan, there are not views from the campsites, due to trees and vegetation. However it is possible to hike a small distance through the forest for views of Lake Chelan.
Grouse Mountain Campground is located within the Twenty Five Mile Creek area, which has a number of interconnected hiking trails. The campground is roughly five miles away from the North Fork 25 Mile Creek trailhead (you pass it on the drive up to the campground) and seven miles away from Crescent Hill Trailhead, which provides access to Devil's Backbone Trail, North Fork 25 Mile Creek and Lake Creek Trail.