The tentacular roots of an eastern hemlock tree,
Tsuga canadensis, clutch a sandstone boulder at Old Man's Cave. Hemlocks do well on thin soil over rocky substrates, and over long time spans undoubtedly help break rock down by fracturing it, and calving big chunks from cliffs when ice and windstorms bring large trees down. The nooks and crannies within the root network also make great foraging areas for winter wrens. Hocking County, Ohio, yesterday.
