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National parks: 13stabilityequipment.jpg - public domain image
Equipment used for determining soil stability.
National parks: 11stability.jpg - public domain image
Vegetation ecologist demonstrates how to set up a plot and conduct the network's vegetation monitoring. This photo depicts a test for soil stability.
National parks: 12stability.jpg - public domain image
Test for soil stability, conducted in accordance with the directions on the top of the box.