There isn't a major yard in OKC that I know of. The only one I know about is down south of I240 and east of I35. Cherokee Yard in Tulsa is your best bet for railfanning. You can see it from the east side but the best spot I understand for rail fanning is on the mountain to the west side. I don't know how tight security is but there have been a couple of murders up there in the past so it might be pretty tight. Good luck.:tb-biggrin: