VIDEO $3.2M Tahoe Yacht sinks. Marketing materials show the 85-foot Sierra Rose gracefully motoring across the blue waters of Lake Tahoe. Tuesday, the 4,000-square-foot yacht struck a less glamorous pose – partially submerged.

The $3.2 million vessel – billed as the largest noncommercial craft on the lake – sank early Monday morning near South Lake Tahoe's Tahoe Keys Marina, officials said.

Witnesses told local media outlets they heard crunching sounds around 9 p.m. Sunday. By 4 a.m. El Dorado County environmental officials were called out to monitor the situation. The concern was that the vessel would leak fuel or sewage into the lake, said Barbara Houghton, an environmental health manager for the county.

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