From their web site http://www.gjmotorspeedway.com/
See”How to find us” button on the left or follow link below
http://www.gjmotorspeedway.com/How%20to%20Find%20Us.htm
3030 I-70 Frontage Road, Grand Junction, CO 81504
From F Road (also called Patterson Road) turn north on 29 Rd.
(toward the desert) Go approximately 1 mile. The road becomes
a “Y” At the “Y”, veer left and go over the canal bridge Continue
up and over the next bridge which goes over Interstate 70 Just
after the bridge, turn right onto the frontage road Stay on the
frontage road for approx. 1/2 mile Turn left when you see the
entrance sign to the motor speedway