National Geologic Map Database
General Information
- Title: Environmental geologic map of the Harbor Island area, Texas
- Author(s): Casby, S.B.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Miscellaneous Field Studies Map MF-687
- Publication Date: 1975
- Map Scale: 1:24,000
- Cross Section: None
- North Latitude: 27° 57' 20" N (27.9556)
- South Latitude: 27° 46' 50" N (27.7806)
- East Longitude: 97° 0' 0" W (-97.0000)
- West Longitude: 97° 11' 30" W (-97.1917)
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* See base map disclaimer below.
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- For more information, please contact:
- U.S. Geological Survey
- USGS Information Services
- Box 25286
- Denver, CO 80225
- Phone: (303) 202-4700 or 1-888-ASK-USGS
- Fax: (303) 202-4710
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.