LAKE COUNTY, Fla. -- A sheriff's dive team discovered what is believed to be a late-1800s era steamboat at the bottom of a Central Florida lake during a training exercise last month. The Lake County sheriff's dive team found the boat at the bottom of Lake Minneola in the lake's southwest corner in Clermont while training with side-scan sonar, which they recently acquired. The sonar is a piece of equipment that is dragged by a boat and projects images of the underwater environment. After seeing an image of the boat, which appeared to be about 18 feet long, dive team...