Mammoth Access is a public boat ramp on Big River near Frumet, Missouri, the United States. The ramp surface is unpaved.
Details
| Type | Boat ramp |
|---|---|
| Location | Frumet, Jefferson County, Missouri |
| Water | Big River |
| Coordinates | 38.12131, -90.67587 |
| Access | Public |
| Ramp surface | Unpaved |
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