Drainage caisson


Float switch

Stephen Moysey and students

Tim installing electrode

Initializing resistivity measurements

Electrodes in the cornfield

Electrodes through the woods

Explaining what's next

Surveying the transect

In the field

Processing data or checking e-mail?

Curtis works with the GPR

Starting the system

Input from the boss

Leaving town

Laying out the survey

Where did everyone go?

David hunting for ticks

Amelia surveying in the woods

Dragging the GPR really slowly

Even slower?

Checking the data

Last survey of the day