Annual surveys of water channels in the crater of Mount St. Helens ...

Annual surveys of water channels in the crater of Mount St. Helens ...

Detailed Description

Crews survey Loowit Creek channel and other points inside the crater. Elevation information is used to make a longitudinal profile of the channel, characterizing areas where sediment is either deposited or transported and how the channel is changing with time. View to the north, with Spirit Lake and Mount Rainier in the background.

Details

Image Dimensions: 4320 x 3240

Date Taken: