@thecrawdfather They are semi-arboreal and they love to climb and are adapted for it. You should look up videos/pics of them climbing straight up trees, it is impressive. Right now I have her in a smaller enclosure than I would really like, mainly so I can watch her while she is on quarantine and clean easily. I have a simple 29 gallon right now, but I plan to make a larger enclosure myself. The measurements are likely going to be 48x24x30. I may also make it taller than that, or I could just make a section of it a nice climbing space.
They can be kept using ambient temps and you can let them burmate during the colder months as they are native over a large portion of the U.S. (including Indiana). Right now my room temps range from 86°F during the day and around 72-80°F at night. During the colder months it stays in the mid 60s unless I kick my space heater on and then it stays 70-80 depending on how long I keep it on. They keep just like Arizona mountain kings and a few other North American colubrids in terms of temps.