Illia Dunes is closed until further notice due to health and safety concerns caused by visitors's trash. During the past weekend, more than 3,000 visitors descended upon the dunes, a popular recreation site located at Snake River Mile 102 on the south shoreline about three miles downstream of Lower Granite Lock and Dam. As result, enormous amounts of trash were scattered on the beach, broken bottles and beer cans left in the water, refuse strewn about the parking lots and litter discarded along the roadway, creating potential health and safety hazards for future visitors.