Hidden Mountain (Mystery Rock and Ruins Site) is a 4 mile lightly trafficked out and back trail located near Jarales, NM and is rated as moderate. The trail is primarily used for hiking and is accessible year-round. Dogs are also able to use this trail.
Most easy travel on a dirt road with a short segment to the top where the ruins are that is strenuous for about 10 - 15 minutes, but overall it is easy. Some nice rock formations, Petroglyphs and Ruins. The highlight is a Decalogue stone at the bottom of the mountain but there is lots to see up top if you walk around and explore. Several ruins sites and petroglyphs. Shemite in nature.
Firstly, a very breathtaking drive to the middle of nowhere. Then you turn right towards waste management station. Notice there is no real parking just widening of the road right before the bridge. The entryway is a little snug for bigger hikers but if you go follow the fence you can just go around.
Wide sandy walk ways, Many trail markers made of rocks. Be warned it seems like some people have left numerous broken beer bottles so watch your canines.
The petroglyphs are amazing, before you go take a moment to research this place to get a little backstory.
If you go on a Jewish holiday you may see visitors to the sight though it is so isolated you may not.
Very interesting place to visit, but please note: This is Native American Land leased to the State, so be respectful and two, you need a permit to be on state land. That said, the hike to the Decalogue stone is easy and flat, but you will need to cross under a fence at one point. Just to the south of the stone you can see some petroglyphs and one looks like a dino. The trail to the top is 10-15 minutes of strenuous hiking but on top is no big deal. Note the trail to the top disappears just before the top when I did this trip. You can obtain info from the Village of Los Lunas and the State in Santa Fe. Many believe this is an ancient Jewish Site and others not. I can't tell you for sure but if it is a hoax, someone went to a lot of trouble building all the shemite ruins on top and did a great job matching several petroglyphs that are very similar to ones found in the Sanai Penesula. I've also been with Hebrew speakers (some Jewish too) and not even the atheist scholar found any problems with the place being legit. One other interesting thing. I talked with a local Native American who was in their 40's who told me their great grandfather knew of the place as a child, so the story of this place being done by college kids in the 50's doesn't hold water. He's also the one who told me how to find the dinosaur looking petroglyph, which is native american. Can we know for sure it is legit, no, that is part of the mystery, but we know that Israel under King Solomon sent ships out for 3 years at a time and that they had relations with the Phoenicians who were known to have built amazing ships with amazing technology.
The Hidden Mountain trail is a short and easy hike. It is a flat, well traveled trail, and the Mystery Rock is easy to find. Just follow the well traveled dirt trail the entire time.
You can park on the side of a well maintained dirt road, which is right off highway 6. It is the same road which leads to the waste transfer station.
The Mystery Rock is an interesting find as well. I believe that it is well worth the hike and trip, if you are interested in seeing the rock for yourself.