Camas Prairie Centennial Marsh WMA is located 14 miles west of the town of Fairfield in southcentral Idaho’s Camas County. Take Interstate 84 to exit 95 (Mountain Home). Turn north on U.S. Highway 20 and travel 45 miles to Hill City, Idaho. Watch for the WMA sign and west entrance (Swamp Road) to Camas Prairie Centennial Marsh WMA. Waterfowl are numerous and include Canada geese, mallards, gadwalls, American wigeon, northern pintails, green-winged, blue-winged and cinnamon teal, northern shovelers, lesser scaup, canvasbacks, redheads and ruddy ducks. Sage grouse and gray partridge inhabit upland areas of the WMA. Barn, bank and violet-green swallows hunt insects over Centennial Marsh. Upland habitats are home to western flycatchers, horned larks, mountain bluebirds, sage thrashers and a host of other species. Late-season waterfowl hunting is available at the WMA. However, opportunities are directly affected by precipitation levels the summer and fall previous. Upland bird hunting is spotty, while small game hunting can be good in years of high rabbit numbers.