90% certainty not honey locust, Gleditsia tricanthos. We have a lot of honey locust out here in our urban forests and the bark looks nothing like that. It is somewhat corky but has deep fissures in the more mature trees. I did a grad forest pathology project on Thyronectria canker in honey locust. Spent alot of time with my face in the bark. Robinia sp., is known as black locust out here and grows in fence rows, etc, out on the plains. I could buy that one accounting for regional phenotypic differences in growth and form.
If we want to do this right, take some close up pics of the binately compund leaves, twigs,thorns, bark, and cross grain and I/we can key it out. I have a pretty decent dendro reference collection.
-Scott
