Geographic information system (GIS) data for 2015 Scientific Investigations Map 3336,"Delineation of Marsh Types From Corpus Christi Bay, Texas, to Perdido Bay, Alabama, in 2010" by Nicholas M. Enwright, Stephen B. Hartley, Brady R. Couvillion, Michael G. Brasher, Jenneke M. Visser, Michael K. Mitchell, Bart M. Ballard, Mark W. Parr, and Barry C. Wilson The GIS data are contained in a compressed file: SIM_3336_Spatial_Data.zip This compressed file contains: corpus_christi_bay_to_perdido_bay_marsh_type_classification.img - Raster dataset containing the four-marsh-type classification from Corpus Christi Bay, Texas, to Perdido Bay, AL in 2010. corpus_christi_bay_to_perdido_bay_marsh_type_classification.lyr - Layer file containing the four-marsh-type classification from Corpus Christi Bay, Texas, to Perdido Bay, AL in 2010. coastal_texas_three_marsh_type_classification_2010.img - Raster dataset containing the three-marsh-type classification for coastal Texas in 2010. coastal_texas_three_marsh_type_classification_2010.lyr - Layer file of containing the three-marsh-type classification for coastal Texas in 2010. Each raster dataset contains Federal Geographic Data Committee compliant metadata.