Scar tissue is tissue that develops when healthy skin is destroyed by trauma, such as a surgery, a burn, or an injury. Scars are thicker when they are repairing damage within skin's deeper layers.

The Douglas fir and ponderosa pine seedlings destined for the Quarry Fire area will be hiked into the burn scar and planted by hand. “We can do a lot of things here at the nursery to make sure ...