Many to one relationship with the MapCat table. Contains one record for EACH StreamNet subbasin (circa 2001) represented on the plot.
| Field Name | Field Description | Data Type | Field Size* | MapID | The map or image ID, foreign key to table MapCat | int | 4 | Subbasin2001ID | Subbasin code defined in 2001 by StreamNet for Subbasins defined by NPCC. | tinyint | 1 | RankID | The rank describing the geographic scope of Map relative to Subbasin2001. | tinyint | 1 |
*The text datatype pre-allocates only 16 bytes. Size represents actual bytes for all other data types.