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Uncharted

Uncharted Marina
Welcome To The Water

Boating feels like a breath of fresh air.  A sense of freedom from the everyday grind. The moment you step onto your boat, you feel all your worries drift away with the current.

Our spacious and private full-service marina is proudly family-owned and operated. We are located on the banks of the Mississippi River in St. Charles, MO. See for yourself why boaters have chosen Uncharted Marina for all their boating needs for more than 40 years.

Premium Boat Slip Rentals

Our elevated and protected floating dock system offers 30′ to 70′ boat slips and end ties to accommodate larger yachts, all accessible even during high water.

Quality Marine Repair + Parts

Get your boat repaired and back on the water or outfitted with the accessories you want! Your best choice for complete marine repair and parts, we handle it all!

Full-Service Fuel Dock

The freshest fuel on the river! Our premium Valvtect marine fuel is ordered fresh weekly.

Self-Launch + Dry Storage

Our marina offers on-site dry storage, ramping and lift capabilities up to 60 tons.