Topographical map of Oklahoma

Does anyone know where I can purchase a topographical map of Oklahoma showing all counties including all of the Section-Township-Range?

Christy, I'm not sure if it is still available, but a few years ago I purchased an atlas (15 1/2 inches X 11, 136 pages).

"The Roads of Oklahoma". Printed on the cover is "All the roads of Oklahoma from the Interstates to the backroads - Map scale: 1 inch = 2.5 miles - Detailed mapping of all watersheds - Township and Range -..."

Copyright 1997 by Shearer Publishing ISBN 0-940672-67-7

Good luck on your search.

Thank you Wesley Skinner! I am going to give this a shot.