Procedures_Used: Photos interpreted at USDA-ARS office in Weslaco, Tx. Infestations delineated on mylar overlay attached to photograph. Interpretation verified by park staff. Photographs georeferenced with orthophotoquads and digitized in GRASS. GRASS da imported into Arc/Info at T. Roosevelt National Park in 1994.
Revisions: None
Reviews_Applied_to_Data: Reviewed by park staff.
Related_Spatial_and_Tabular_Data_Sets: None
Other_References_Cited: Andersen, Gerald. June 1993. USDA-ARS, Weslaco, Tx.
Notes: None
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