The Coffee Mill Hammock Formation is a geologic formation in Florida. The formation is 3-6 feet thick and is composed of shell marl. It sits on top of the Fort Thompson Formation and preserves fossils from the Late Pleistocene, predominantly Chione elevata. It can be seen at Goodno's Landing, Fort Thompson, and at Coffee Mill Hammock, 12 north of LaBelle, Florida, in Glades County.
See also
List of fossiliferous stratigraphic units in Florida
References
National Geologic Map Database Geologic Unit: Coffee Mill Hammock Photograph of geologic layers at Goodno's Landing, Fort Thompson. The lowest level (D) is "Coffee Mill Hammock shell marl member of the Fort Thompson formation".