Picnic Area-Jackson State Forest Jackson–Washington State Forest
picnic area-jackson state forest, known knob creek upper picnic area, historic picnic area located in jackson-washington state forest, driftwood township, jackson county, indiana. nestled in oak grove on hillside northwest above former sawmill lake. built in 1934 civilian conservation corps, , includes 6 contributing resources. oven shelter, stone platform table, drinking fountain shelter, 2 sets of stone steps, , site, includes 18 stone , timber picnic tables , 5 stone fireplace ovens. it listed on national register of historic places in 1997.