1Robert B. Ditton and James H. Gramann, A Survey of Down-Island Visitors and Their Use Patterns at Padre Island National Seashore, Technical Report No. 6, Cooperative Park study Unit, Department of Recreation and Parks, Texas A&M University, March 1987.
2Interpretive Prospectus, Padre Island National Seashore, Division of Interpretive Planning, Harpers Ferry Center, 1989, p. 2.
3Visitor Use Information, Padre Island Notional Seashore, 1989, unpublished document on file at PAIS, Ranger Station Library.
Last Updated: 14-Jun-2005