GEO
07-28-2004, 08:09 PM
MAIN PAGE
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BENCHMARK SEARCH
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GPS SURVEYING TECHNIQUES
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GPS SURVEYING TECHNIQUES
http://www.usace.army.mil/usace-docs/en ... 83/a-a.pdf (http://www.usace.army.mil/usace-docs/eng-tech-ltrs/etl1110-1-183/a-a.pdf)
VERTICAL CONTROL
http://www.usace.army.mil/usace-docs/en ... 04/c-6.pdf (http://www.usace.army.mil/usace-docs/eng-manuals/em1110-1-1004/c-6.pdf)