Turn off the Alaska Hwy at the Shell, mile 54, onto Hwy 29 to Hudson's Hope.
  (It's 32km  from Mile 54 to the Upper Cache turn off)
Drive on Hwy 29 until you drop down to the river, and up again to the top, then turn right onto the Upper Cache Creek Rd, across from the rest area.

 Drive on gravel for 28 km to the Bovee Ranch. The cattle pens are on your left before the ranch driveway, there are 2 red graineries.  To the horse camping area keep on going past the driveway, to the edge of the hill, and follow the road around the bend.  The parking area for trailers will be marked with signs.
Approx. 1 hour drive from Fort St. John.