Dead Goats, Dead Turtles, and Limestones

I think the limestones are triassic limestone roof pendants of the 13 Ma quartz monzonite Wilson Ridge pluton from way across Lake Mead.

I unthinkingly was conflating these two terms:
Volcanic Stock: igneous intrusion that has a surface exposure differing from a large batholith in size only.
Stock Work: mining term for complex network of closely spaced, interconnected mineralized veins of hydrothermal ore deposits.

Free Updated Geologic Map of the Black Canyon Area:
https://pubs.usgs.gov/of/2013/1267/a/

Credance Clearwater Revival on YouTube:
https://www.youtube.com/watch?v=zwAcvIZzuM0&list=RDzwAcvIZzuM0&start_radio=1