Old Riverbed "Concrete" Centennial, Colorado

[C & W Minerals]

Finding this rusty stuff on my new home construction site. Gonna crush and pan tonight. Anybody have any comments about the material? Small creek in the neighborhood. Used to be a major creek that ran right through here. Stuff is heavy. We have another 30 lots to excavate, with about 20 currently under construction. Hoping it holds some value...my excavator is unknowingly digging it up for me.

 

Amazon Forum Fav 👍

A Handbook of Civil War Bullets and Cartridges - Grab it through Amazon!

[Assembler]

Hello
Let us know after you crush and pan. Don't know about your local racks however will take a look at pictures after you crush and pan.
Thanks for the post.

 

[KevinInColorado]

Old Riverbed "Concrete" Centennial, Colorado

Yes you may find gold in there. I used to prospect all over Centennial and at one point I crushed some of that and found gold I think that stuff is from the old castle rock conglomerate formation.

There was better gold loose in the creeks so I left that stuff for you

You'll also find nice petrified wood. And GREAT gold where you find larger rounded river cobble. Worth the search!!!

 

[ecmjamsit]

I have heard of gold being found between Castle Rock and Franktown. It would definitely be worth crushing and panning. Might be worth looking at with a 100X microscope. Sometimes the gold has a sulphurous iron coating or stain and won't look like gold. Only can seen it with a microscope!

 

[C & W Minerals]

Yes you may find gold in there. I used to prospect all over Centennial and at one point I crushed some of that and found gold I think that stuff is from the old castle rock conglomerate formation.

There was better gold loose in the creeks so I left that stuff for you

You'll also find nice petrified wood. And GREAT gold where you find larger rounded river cobble. Worth the search!!!

Hi Kevin....I'm finding petrified wood all over the place. That Castle rock tuff had a widespread over the front range. Dispersed from about 100 miles away due to the volcanics in the Mt Princeton batholith. I'll be crushing up a 3gallon bucket today. I'll be back later with the results.