The problem is finding good spots for all the stakes; hard to do with rocky soil. (warbonnetoutdoors.com)
The relatively flat ground and rocky soil of the research sites within the Blacks Mountain Experimental Forest in California's Lassen National Forest, where the Cone Fire burned, may have reduced negative effects associated with ground disturbance, leading researchers to caution applying their findings to areas where soil disturbance from logging is greater. (sciencedaily.com)
Instead of soy foam, like many of their competitors, this foam is derived from non-food plants which grow in rocky soil. (babybargains.com)