Take US Hwy 412 to West Siloam Springs, Oklahoma
Go South on US Hwy 59. Go 2.9 miles (just before the bridge)
Turn RIGHT then a QUICK LEFT onto the Frontage Road.
Follow Sign to track
Take US Hwy 59 (in Oklahoma) north through Watts, Oklahoma
Go 1.5 miles past Watts.
After bridge (Illinois River), Turn LEFT then a QUICK LEFT onto the Frontage Road.