This is a geologic sample in one of the Bureau of Economic Geology's three Core Research Centers. API Number: 210793386000 Top Depth: 4000 Ft. Bottom Depth: 6900 Ft. lease_name: ST BLUE LAKE C 3-10 sample_type_name: CUTTINGS sample_category_name: Cuttings formation_name: Unknown formation_age_name: Unknown facility_name: Houston reservoir_name: BLUE LK 16-28N-5W operator_name: UNKNOWN state_name: Michigan county_name: Kalkaska