Thanks folks-Peaches the material is likely solidified shale and rhyolite. Sometimes they can be hard to tell apart with the patina and weathering.
Redbeard- There are two points in the insitu picture. One is partially cover just below the exposed one.
Monsterrack- I have a few other spots but job sites is about all I look now. You have to get on them quick before too much dirt gets moved.