Much of the trail is a well-worn trench in the rock, but in one place there are several parallel grooves, forming what I call the "claw".
I eventually reached the top.
Someone had placed these cairns at the northern edge of the top. In the background, I think that's the interchange between NM-4 and NM-502.
The ruins of the Tsankawi pueblo were also on top of the mesa.
The rock on the side of the mesa, near the center of this next shot, has some notches that look rectangular. Were they carved into the rock?
The trail passes close to this rock, which includes numerous petroglyphs.
For more on Tsankawi, go to Santa Fe Travelers, All Trails and The American Southwest.