This road heads uphill from Pilarcitos Canyon Rd about 100 yards from the top. When heading out from Laguna Seca, look for this on your left.
The road starts with a gradual climb to a grand overlook. The large signs with numbers were used back in the day when this was an army post. As you ride past the signs you'll start heading down the hill. Watch the ruts and your speed as the road bears to the right and drops through a small wash at the bottom that can be hazardous when hit at speed.
Follow the ridge for a combination of climbs and descents with more grand views (watch the gravel in the turns). You will pass the entrance to Trail 50 (south) and start a gradual climb. As you come around the turn at the top and crest the climb, look for "The Wall". Charge "The Wall" (advanced riders may make it) or walk your bike as many have done before you.
At the top of "The Wall" there is a large gate to your left and the road continues across the top of the bluff to your right. Did I mention great views? The road drops down the other side of the bluff into a saddle. It is fairly steep here and can be rutted and loose so watch your line. At the bottom of the saddle, look for Trail 49 (north) to your left and Trail 49 (south) to your right with a LARGE flat rock in between. The rock has a crack down the middle and is a good place for a break and a view. The road continues on up the other side of the saddle to a nice overlook and all the way to Jacks Road.