Made it to hwy 285. And there is the mountain. This intersection is right at mile marker 401, on hwy 285. This is the north side of the mountain. I traveled about 38 miles from Arroyo Hondo to this point. Took me almost two hours. Took lots of different roads. After doing some calculations I realized I had enough gas to make it to Arroyo Hondo. If I had taken the slab back I would run out of gas for sure. No way would I take the slab back! So I back tracked, that way I would memorize this route.