For dead red elm..................found 4 of them to start with at least 6 inches in diameter. Enough for about 2 days worth of burning out of each one of them. Then I found the father and mother and uncle of these red elm. I have discovered I have at least 3 live red elm that are at least 18 to 20" diameter and about 50 feet tall. They really get a aged looking bark on them when they get that big.