Description: TPCC_POLY: Timber Production Capability Class (TPC) shows areas of BLM-managed lands in Western Oregon that are classified according to the physical and biological capability of the site to support and produce forest products. This data was generated from a variety of data sources over a relatively long period of time. Accuracy of the data, relative to related data and current versions of source data, may be highly variable. Site specific questions of scale and accuracy should be directed to the TPC data steward. This data has been edited for public release.