http://www.railresource.com/content/?p=11296 This one-time interurban railroad between Tulsa and Sand Springs is being serviced with three SW900s, all in green & yellow. Its biggest customer was Gardeau Ameristeel in Sand Springs, which closed down a few years ago. The railroad still operates over its former interurban ROW from its shops in the Springs to a BNSF interchange (ex-Frisco) along the west bank of the Arkansas River.