The cache is located at N38° 50.ABC W104° 46.DEF. At the listed coords, look for a number. This is A. At the second waypoint, look for a number. This is B. Make your way to the third waypoint, look for a number & find C. At the final waypoint, look for red numbers on a white sign. The second digit is D, the third digit is E. Add up all the numbers and the total is F. Now put it all together and you have the final coords!
All numbers you need to look for are obvious and single-digits, except for the last set. As always, use stealth!
You can check your answers for this puzzle on Geochecker.com.
Sounds like B might be gone. Use 7.