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The Chatham community at the lake’s northwest end boasts an agricultural building unique in the state: a round barn that stored cottonseed for local farmers. A circular, open cupola for ventilation tops the board-and-batten structure. Shuttered openings indicate numbered, partitioned bins inside that kept batches of seed separated until the next growing season. Trucks drove through the porte-cochere where pipes (removed) sucked the seed into the correct bin. Nearby, Roy’s Store (c. 1940) stands at the terminus of the old concrete highway, MS 1 (1917), which linked Lake Washington, then evolving as a recreation destination, to Greenville.