The Castillero Trail splits from Mine Hill Trail
just after a little picnic area with a horse trough. Stay to the right at this fork in the trail to take the Castillero Trail. The Castillero Trail is an open, wide trail with views of the pristine Santa Cruz Mountains on the right. This section follows along a hillside that drops off to the right, and continues up on the left. After going past a short wooded section, the old Mine Hill Rotary Furnace ruins come into view.
Just before reaching the old Mine Hill Rotary Furnace ruins, the hill to the left of the trail is Mine Hill. Here, a short spur trail off Castillero Trail doubles back and climbs Mine Hill, if you'd like to make your journey a bit more strenuous.
Continuing on past the Mine Hill Rotary Furnace ruins, the Castillero Trail veers left. It passes the Hidalgo Cemetery Trail
on the right, as it goes around Mine Hill that is to the left of the trail. The vegetation becomes thicker as it winds on and meets up with the Yellow Kid Trail
after a short ways.
To the right, at the Castillero Trail/Yellow Kid Trail
junction is the site of the old English Camp. When these mines were active in the late 19th and early 20th centuries, the Cornish miners and their families lived here, in a town of about 1000 people.
Grass and wooded hills. Deer.