Courtland Delta Loop Start in Courtland and park near post office or school on Primasing Ave. Leaving Primasing, turn left onto River Rd./Hwy. 160 7.0 miles, optional detour in historic Locke 8.3 lefthand bend toward Stockton/Lodi 9.3 enter San Joaquin County 13.7 left onto Thornton Rd. (Co. Rd. J8) 16.0 Sacramento County line 16.7. Optional stop at Cosumnes River Preserve 17.4 right onto Desmond Rd. (becomes Bruceville) 19.5 left onto Twin Cities 20.7 right onto Franklin 22.8 left onto Lambert Rd.. 29.1 left on River Rd. 30.9 You're done. Food options include Al the Wop's in Locke or Tony's Taco truck in Courtland.