Eastern Archaic Context Types — Ash/Charcoal Scatter Not in Structure Ontology: Eastern Archaic Context Types Parent: Non-Structure Datasets that use Ash/Charcoal Scatter Not in Structure Modoc Rock Shelter, IL (11R5)-1980 Fauna dataset-West Shelter 1/4 inch waterscreen Modoc Rock Shelter, IL (11R5)-1980-West Shelter Units C, D, and F-Snails in Flot Samples