Good parking along the road in a pullout (during winter).  Note for winter ascents, stay left of the track at the bottom so you keep high.  Do not go right into the quarry as you will need to climb out.  We had to snowshoe up mud!  We stayed high on the descent.  On your climb up, work your way to the left hand summit ridge.  No trail and steep, but doable.  Metal posts at the top to strap antenna to.  Great views

In the summer you may be able to drive into the gravel quarry and take other ridgelines.

https://www.sotamaps.org/tracks.php?smt=W7I/SR-138