Lakes

An undated picture showing a U.S. Army submerged vehicle in the bottom of Lake Garda, Italy's largest lake. An underwater search expedition in Italy has come up empty-handed after a small submarine scoured the bottom of Lake Garda, Italy's largest lake, to look for any remains of the 24 U.S. soldiers who were among the last casualties in the country before World War II ended. After three days of searching, the three-person submarine returned to the surface Thursday without no obvious evidence of remains or uniforms from the amphibious vehicle that sank in a storm on April 30, 1945. (Benach Nago-Torbole Via AP)

This Tuesday, Sept. 4, 2018, photo provided by Cleveland Underwater Explorers Inc. shows the remains of a shipwreck found in the Ohio waters of Lake Erie. Shipwreck hunters and a marine archaeologists say the wreckage found in 2015 is most likely from a sailing ship that went down nearly two centuries ago. The discovery would make it the oldest ever found in the lake. (David M VanZandt/Cleveland Underwater Explorers Inc. via AP)

This Wednesday, Sept. 26, 2018, photo provided by the National Park Service shows a 4-year-old female gray wolf emerging from her cage at Isle Royale National Park in Michigan. The wolf along with a a 5-year-old male were flown to the park Wednesday from the Grand Portage Indian Reservation in Minnesota to kick off a multi-year effort to restore the predator species on the Lake Superior island chain. (National Park Service via AP)

CORRECTS TO GRAY MATERIAL, NOT GRAY FLUIDS - In this image made from Friday Sept. 21, 2018 drone video provided by the N.C. Department of Environmental Quality, light gray material flows out of a flooded coal ash dump toward the Cape Fear River at Duke Energy's L.V. Sutton Power Station in Wilmington, N.C. Floodwaters from Hurricane Florence breached a dam at the plant's 1,100 reservoir on Saturday, Sept 22, 2018, flooding a dump containing 400,000 cubic yards (305,820 cubic meters) of coal ash. The gray ash left over when coal is burned to generate electricity contains mercury, lead, arsenic and other toxic heavy metals. (N.C. Department of Environmental Quality via AP)

In this photo released Friday, Sept. 21, 2018, by Duke Energy, Gray material that Duke Energy characterized as lightweight coal combustion byproducts could be seen Friday floating on the top of the lake, near Wilmington, N.C. The ash left over when coal is burned to generate electricity coal ash contains an array of components, including mercury, lead, arsenic and other toxic heavy metals. The inundated basin contains at the plant 400,000 cubic yards of ash.(Duke Energy via AP)

In this drone photo released by Duke Energy, flooding from the swollen Cape Fear River overtops an earthen dike at Sutton Lake, a 1,100-acre (445-hectare) lake at the L.V. Sutton Power Station near Wilmington, N.C. , Thursday, Sept. 20, 2018. Duke Energy activated a high-level emergency alert at the retired coal-fired power plant due to the flooding, raising concerns of a potential breach. (Duke Energy via AP)

Park Ranger Alex Martinez passes maps out and directs visitors at the Highway 140 gate as Yosemite National Park reopens in California, Tuesday, Aug. 14, 2018. The nearly three-week closure was the result of a wildfire. (AP Photo/Gary Kazanjian)

Kim Burns sifts through the charred rubble of her home burned in the Carr Fire, Sunday, Aug. 12, 2018, in Redding, Calif. (AP Photo/John Locher)