1/250 f/8.0 17.0 mm ISO 100

RICOH IMAGING COMPANY, LTD. PENTAX K-3

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Kris Lockyear

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Keywords

resistance survey
Tobias site
geophysical survey
twin probe survey
NPS
Lyons
Kansas
Pentax
geophysics
square array
NPS course


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Doing the resistance tango

Doing the resistance tango
Using a twin probe array and a square array in the same grid square can be problematic! Chris Gaffney and myself are operating the machines.

Tobias site near Lyons, Kansas, NPS course 2015.

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