Picnic areas are available at many of the sites on Gillham Lake. There are three designated picnicking areas and two group shelters which are great for family reunions. The picnic shelters are lighted and equipped with a barbeque grill and electricity. One is located on the lake and the other one is located on the Cossatot River. Picnic areas and shelters are located at Cossatot Point, Little Coon Creek, BIg Coon Creek and Cossatot Reefs. These shelters may be rented by contacting the Cossatot Reefs gatehouse at 870-386-7261 or the Big Coon Creek .gatehouse at 870-385-7126.