The bark is gray-brown on the surface and red-brown on the inside, thin, and scaly.
Red Spruce
The bark on young trees is smooth, grey, and with resin blisters (which tend to spray when ruptured), becoming rough and fissured or scaly on old trees.
Fir
thin, smooth, grayish brown bark.
Fir
cones hang down; needless are yellow-green
red spruce
cones stand upright; needles are dark green
fir
bark has resinous blisters on juvenile trees, becoming fissured and scaly in maturity.
Fir
fir tree whose cones have visible bracts
Fraser Fir
short, dark green needles with small cones that hang down
eastern hemlock
scaly dark green leaves and shaggy red bark
eastern red cedar (cypress)