This tree is becoming popular in Cody, Wyoming. Very pretty red coloring this fall. Pictures show branch structure, bark and leaves. There seems to be some variation in leaf shape on the same tree. We like the fact that the tree seems to be rather columnar and would perhaps do well in a narrow area. We're Zone 4 here and these trees seem to be doing well. Thought the tree was a maple, but we're not sure. Someone told us it was an Amur maple but the shape does not seem to be correct. Would really like to know what it is. Thank you for your attention. Elaine Tabacinski