Not sure of the exact kind of ash yet, but think it is a white ash based on the nearby trees (most dead due to the emerald ash borer). The tree was originally chainsawed to a stump then grew for several year's untouched, last fall I cut it back hard and let it grow all season, just cut it back again the fall. Today I dug a ring about a foot away from the trunk and used a saw to cut through all but maybe 1 or 2 of the major roots. I then filled it in with all the extra soil left over from a failed collection this spring. Then covered it back up with some normal soil. Hopefully next spring it will still be alive and grow lots more feeder roots in response to my cutting through some of the major roots.