After researching google maps and other posts I have come up with this... if anyone has experience with this route, let me know.
→ 15S
→ Exit Cima Rd
→ At 7 miles, take Deer Spring Rd South
→ At ~10.5 miles, turn R on Aiken Mine Rd
....Take that for a while, stop at the lava tube
→ At mile ~28.5, head S on Kelbaker Rd
....Stop at Kelso Depot for some Visitor Center action
→ Head N on Kelso Cima Rd to Macedonia Cyn Rd for the infamous under-the-train-bridge photo, and, if time (wife) permits...
→ Continue to White Horse Rd
→ White Horse Rd E to Black Canyon Rd
→ Black Cyn Rd S to Essex Rd
→ Essex Rd to I-40W
if time (wife) does not permit, get the train bridge photo and head back to Kelbaker Rd S to I-40W.
Option with White Horse → Black Canyon → Essex → 40W
gmap-pedometer.com
Option without (Kelbaker → 40W)
gmap-pedometer.com