This is a geologic sample in one of the Bureau of Economic Geology's three Core Research Centers. API Number: 210792822900 Top Depth: 6736 Ft. Bottom Depth: 7225 Ft. lease_name: STATE BLUE LAKE UNIT / sample_type_name: CUTTINGS sample_category_name: Cuttings formation_name: Unknown formation_age_name: Unknown facility_name: Houston reservoir_name: BLUE LK 28-28N-5W operator_name: UNKNOWN state_name: Michigan county_name: Kalkaska