An Geologist maps the margin of the June 27th lava flow using GPS. ...

An HVO geologist maps the margin of the June 27th lava flow using G...

Detailed Description

An HVO geologist maps the margin of the June 27th lava flow using GPS. Mapping on foot like this can be difficult in thick forest due to downed trees covering the edge of the flow.

Details

Image Dimensions: 4080 x 2720

Date Taken: