Vegetation Inventory and Map for Casa Grande Ruins National Monument

Creosote in bloom

NPS Photo


Casa Grande Ruins National Monument is composed primarily of desert shrubland characteristic of the Lower Colorado River division of the Sonoran Desert. Natural vegetation in the study area is composed of shrubland dominated by creosotebush. In other areas, shrubs, such as wolfberry, cattle saltbush, triangle bur ragweed, desertbroom, or littleleaf ratany form a portion of the dominant shrub stratum in association with creosote.

The Casa Grande Ruins National Monument vegetation mapping project delivers many geospatial and vegetation data products, including an in-depth project report discussing methods and results, which include descriptions to vegetation associations, field keys to vegetation associations, map classification, and map-class descriptions. The suite of products also includes a database of vegetation plots, verification sites, validation sites, and accuracy assessment (AA) sites; digital images of field sites; field data sheets; digital aerial imagery; hardcopy and digital maps; a contingency table listing AA results; and a geodatabase of vegetation and land cover (map layer), field sites (vegetation plots, verification sites, validation sites, and AA sites), aerial imagery index, project boundary, and metadata.


The products of vegetation mapping projects are stored and managed in the National Park Service's Data Store, a repository for documents and publications relating to park resources. From the highlighted items below, click on the type of information you are looking for.

Last updated: October 16, 2018