The spectacular cascading falls are a must see. Go 6 miles east on Highway 200 from Sandpoint, then north onto Colburn-Culver Road. Go 6 miles to Grouse Creek Cut-Off Road on the right, then about two miles to join Grouse Creek or Forest Service Road 280. Go right and continue approximately 4 miles staying on Road 280 and watch for a small open meadow on the left. Just beyond the meadow on the right is an unmarked road going down a hill to the trail head #83.
Check out some amazing photography of the falls here: http://www.kateannphotography.net/grouse-creek-falls-sandpoint-idaho/