10 sites, picnic tables, fishing, fire grates, toilets, are first come-first served, drinking water, are RV accessible (limited length, no hook-ups, though) and fee charged. Hiking trail around the lake. Nearby Mink Lake has a barrier free fishing pier and swimming beach - note a trout stamp is required to fish on Kimball Lake. Details here.
From Hwy 61, north 11 miles on Gunflint Trail (Co. Rd. 12), east 2 miles on Trout Lake Road.