I found what appeared to be a down hickory tree near my house. So I went and got my saw and came back. When I got there I got a chance to look closely at the leaves. They are really dry and shrivled. They look like maple leaves but I don't think there are that many maple trees in Arkansas. Anybody know of any leaves that may resemble maple? I have been Googling images of hickory bark and maple bark. There are not a whole lot of degrees of separation between them. What ever it is does a heck of a job on hamburgers. I decided to try it on some meat had to cook anyway. I will try it on something else now.