This data set is a polygon coverage that can be used to identify the location of a research plot. A research plot is an area where biological research activities are undertaken.

Supplementary tables (including a look-up table) can be used and are available for download from the additional documentation section. Supplementary look-up table descriptions are available in the data description document, which is available for download from the additional documentation section. This layer is part of what was known as the OMNR Non-Fundamental Dataset.