This is a geologic sample in one of the Bureau of Economic Geology's three Core Research Centers. API Number: 210793039800 Top Depth: 2900 Ft. Bottom Depth: 5400 Ft. lease_name: sample_type_name: CUTTINGS sample_category_name: Cuttings formation_name: Unknown formation_age_name: Unknown facility_name: Houston reservoir_name: COLD SP 25-28N-6W operator_name: UNKNOWN state_name: Michigan county_name: Kalkaska