Seismic Refraction Survey

A geophone inserted into the soil (4.9M)

The path that was cleared just enough for access (4.5M)

Another section of the path (4.9M)

Betsy charges look like shotgun shells (3.6M)

The Betsy gun is inserted into the soil about 18 inches (5.0M)

A typical reading from the data recorder (4.0M)

Engineering Geologist David Hughes prepares an explosive charge (4.5M)

The explosive charge 'fluffed up' a small area of the sandy soil (4.9M)

Readings from the data recorder are given a quick evaluation to confirm the data is good (3.7M)