Got a question-

[yakker]

Hi folks,
I'm never on this forum, but had a question someone here might be able to answer. Was visiting in Chambersburg, PA over the holidays, and my friends pointed out an odd rock in their back yard area- beyond the lawn. They're thinking the immediate area (their neighborhood)was once a quarry although I haven't been able to find evidence of that on line. When I looked at it, it seemed like a quarrying mark- from drilling out stone. Can someone enlighten me? BTW- in spring we're all going to dig it out and see how far it extends down. Thanks for any help with this Yakker

 

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[jair]

Looks like some sort of markings for an idem hidden long a go. I'd be researching treasures .

 

[yakker]

Thanks Jair. I'll keep trying to investigate the historic mining in the area. Yakker

 

[jair]

May not be mining related . Try treasure hunting , lost treasures or history of gang related Roberts in the 1800's possibly in that areas around your location , your interested in .

 

[Slingshot]

Is that soapstone?

 

[jair]

That is not soap stone.

 

[ca.miner]

Looks even older than that. Weathering of old hand made marks look very weathered down. Well over 100 years. Rock looks like granite. Very interesting

 

[jeff of pa]

Hmm First I saw this Thread



Look like a core drill was used to probably Blast.

But the pics could be better

 

[ca.miner]

How hard is the rock itself. Did you iD what type it is. That would help judge erosion or weathering of marks. I see100 year old drill holes all the time. None look as old as that. You should be able to see definitive proof that it's from a drill. I don't see that.. I could be wrong...Look at Indians of the area and how they lived. Nomadic. Or did they settle down. Nomadic Indians stashed stuff. And would come back to it every year.

 

[augoldminer]

It looks like someone was making a hole in the rock for a large post.

Have done that for a power company that had to run there lines across a large slab of rock and needed two holes for poles,

Some quarries used a cable high line setup to pull rock from a pit or up hill.

 

[ikesdad]

I have been a hardrock miner since 74 and that simply looks like a rock that was drilled and shot or just drilled and broken out.
You guys might be reading too much into this.

 

[ca.miner]

I think your right. I like to over think stuff sometimes. Not a good quality Your the man with the know how.
So I would take his word.

 

[jeff of pa]

I have been a hardrock miner since 74 and that simply looks like a rock that was drilled and shot or just drilled and broken out.
You guys might be reading too much into this.

That's why I suggested pics could be better to show the Drill curves a little clearer

 

[ikesdad]

Think about this....flip this question around 180.....possibly the product that was intended was not the rock that is pictured but the round/cylindrical piece that is missing. House footer/fireplace stone, etc.

 

[ikesdad]

That's why I suggested pics could be better to show the Drill curves a little clearer

You are correct. A machine drilled hole is perfectly round, or close to it. A hand drilled hole, done with hand steel and a single jack, is not round. From the pics, those drill holes appear to be hand drilled.