This is a geologic sample in one of the Bureau of Economic Geology's three Core Research Centers. API Number: 210793231600 Top Depth: 6700 Ft. Bottom Depth: 6875 Ft. lease_name: BLUE LK 17 sample_type_name: CUTTINGS sample_category_name: Cuttings formation_name: Unknown formation_age_name: Unknown facility_name: Houston reservoir_name: BLUE LK 19-28N-5W operator_name: UNKNOWN state_name: Michigan county_name: Kalkaska