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This data set consists of digital mapping data describing polygon geometry and linked attribute data for BLM Colorado's Quarterly Oil and Gas Lease Sale Parcels in the State of Colorado, BLM. The polygons in this data set were generated using the legal land descriptions of the identified Oil and Gas Lease Sale parcels and the Geographic Coordinate Data Base (GCDB) survey grid to produce a mapped layer. Mapped parcels should be checked against the legal land description for the sale parcels in the sale notice to verify and validate data. These data are consolidated from field office inputs. |