Researchers discovered a 137-year-old shipwreck in the depths of Lake Michigan using sonar imagining

• Researchers used sonar to locate a long-lost shipwreck in Lake Michigan.
• The steamship Milwaukee was discovered "remarkably intact."
• The 135-foot ship sank in 1886 after colliding with another boat.

Maritime researchers located the remnants of a long-lost steamer ship off the coast of western Michigan using sonar and historical newspaper accounts.