Lake Berryessa Find

[wade eva]

New member here.

Looking for some help as I'm a total newbie.

My family has had a house at Lake Berryessa (Napa, CA) since the Valley was filled to create the lake.

Upon doing some research of the surrounding areas via a simple google search, I landed on a Archaeological Investigations at Lake Berryessa, California: Berryessa I & II UC Merced Journal of California and Great Basin Anthropology. Which outlined a expedition to catalog the native sites adjacent to Putah Creek that ran thru the valley.

https://escholarship.org/content/qt2pf3f364/qt2pf3f364.pdf

So when we had a major drought a few years ago and the lake receded to it's lowest level since it was filled, I went down below our house and looked around. Attached is a picture of what I found. Tool or just a rock?

What do you think?

 

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[welsbury]

Looks like a basalt cobble they wacked on and possibly used it or discarded when it didn't work out like they wanted. That one edge in pic looks like it could have been a scraper. Anything more? Probably silted in pretty bad.

 

[Gaspipe]

Rock

 

[quito]

Looks like it’s had several flakes removed and looks like a typica core to me.

 

[newnan man]

Welcome. I believe it is just a rock. Keep looking!

 

[vpnavy]

New member here. Looking for some help as I'm a total newbie...

1st - I noticed this was your very first post - so, Welcome Aboard Wade Eva! You didn't list your state (or country) in your profile. So, you might consider jumping over to Sub-Forum: Select Your Area.... for information (i.e., clubs, hunts, finds, legends, maps, etc.) directly related to your state (or country).

2nd - Ya might consider posting this request on Geological Forums > Rocks/Gems if you don't get an ID.

 

[GB Paleo]

What Welsbury said above...……...Basalt cobble with a couple pieces knocked of by the natives.

 

[JJN]

Very cool basalt tool. Most tribes in the area used obsidian later when it became available due to its' superior flaking, edge quality, and occurrence in great abundance. That thing might be thousands of years old. Very interesting.

 

[uniface]

Flake core.