Chris - What do you do if you find any? TRs are one of the species that I worked with in my time at KU and they are a species that is extremely sensitive to disturbance. If you capture them and handle them at all they will likely find a new home and never return to where they were caught, so doing this near a den could have deadly consequences if they cannot find a new den by the time winter arrives. I know that you won't be killing them intentionally so I'm not worried about that but I would urge you to look and not touch. Good hunting and I hope to see some pictures!