Summary:

Wyoming’s Sweetwater Agates are a variety of dendritic agate that are found in the Sweetwater River basin. For lack of better description, it is a wonderfully empty portion of Wyoming. To ensure I didn’t see another soul out here, I visited during the Winter and it was chilly.

The agates themselves are one of the less visually striking stones I’ve gone rockhounding for, in all honesty. Comprised of chalcedony, they have dark dendrites similar to a fern-leaf in appearance. Some of them also have some uranium within them, causing a slight green fluorescence under UV light. There were also some fainly purple, scrappy pieces of weathered amethyst I found in the area too.

This spot was mentioned by a couple others online, otherwise there weren’t any true “hotspots” that I could find in my own research. The gravel roads that wind through the public land alongside Carmody Lake weren’t too bad, but I think 4x4 will be preferable for exploring out here.