You find an alarming-looking patch of recent windblow. How extensive is it? You really don't want to scramble over the tangled unstable mess in front of you to find out... Or perhaps there's a dense compartment of thicket-stage Sitka, with no access rides or brashed tracks. You worry whether some of the interior trees are in check: Google Earth might help, but it's several years out of date, and low-resolution anyway.What you want is a viewpoint above the canopy - an eye in the sky - and a modem SUA (Small Unmanned Aircraft) can provide this, at low enough cost for a forester to use as an everyday tool.
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