Many to one relationship with the MapCat table. Contains one record for EACH StreamNet Region2001 represented on the image.
| Field Name | Field Description | Data Type | Field Size* | MapID | The map or image ID, foreign key to table MapCat | int | 4 | Region2001ID | Region Code (code defined in 2001 by StreamNet) | tinyint | 1 | RankID | The rank describing the geographic scope of Map relative to Region. | tinyint | 1 |
*The text datatype pre-allocates only 16 bytes. Size represents actual bytes for all other data types.