Added to the website:

"Many of the circles are modern day artificial islands that have been created by the California Department of Fish and Game. Although this doesn't explain all the circles in the forest it does explain the areas near Fairchild Swamp."

"Fairchild Swamp is a 2000 acre wetland on the Devils Garden plateau. This area has been developed to provide spring migration and nesting habitat for waterfowl and shorebirds on the Pacific Flyway. This has been a cooperative effort between Ducks Unlimited, California Waterfowl Association, California Department of Fish and Game, and the Modoc National Forest. There are currently over 180 nesting islands and 4 & 1/2 miles of dike, and 6 water control structures in this project."

Does anyone know how many modern nesting islands were created? The areas in the tour cover a very large distance and there are thousands in the Modoc National forest. I will update the placemark tour with the anomalous circular formations and remove the modern nesting mounds.

This is an ongoing research project to help find potential archaeology sites. Your input is greatly appreciated. I don't have time to research all the areas so this forum is great input for the ongoing work at the site. It's a work in progress...

This is just one of the areas I'm referring to that appear to be more eroded than the modern nesting mounds and they dont' seem to be layed out in a particular order.


Latitude: 41 38'41.22"N Longitude: 120 38'14.77"

Certain mounds are referred to as Mima mounds and I'm wondering if that's the case here?

Read more:

Mounds of Mystery

Mima Mounds In The Kenya Highlands