Blair Valley:

Exit Stagecoach Trails and turn right onto Highway S-2. You will go about 2 miles up and over a small mountain pass. Coming down the pass, there will be a dirt road entrance to Blair Valley on the left (there's a sign). You will then proceed East for maybe a half mile to the aid station.

Blair Valley GPS Coordinates: 33.035309, -116.403130

Plum Canyon:

From Blair Valley, turn right onto Highway S-2. You will go past Stagecoach Trails and continue to the "T" intersection where S-2 meets Highway 78. Turn right onto Hwy 78 and proceed about 4 miles. You will drive through a mountain pass and then see an open area on the right. Go into the second opening (dirt area) where there is a wooden trail signpost.

Plum Canyon GPS Coordinates: 33.128566, -116.424916

SWTR recommends printing out any maps beforehand, as cell coverage is very spotty out there.