Under normal circumstances, I'd suggest that this post is better suited for somewhere like /r/geology, but they're closed right now. I'm not personally that familiar with South Dakota geology (maybe someone else will chime in), but the first place to start is with a geologic map. This very basic one from the SD state department of natural resources gives you a first order idea. Basically, there are potential... Source: 10 months ago
Get Rock'D. It's a very good and free NSF-funded App for Android or IOS. I assume you have a good GPS on your phone...mine is much better than any of my handhelds, and I do GPS/GNSS for my research. Source: 11 months ago
The geology map actually has nice little app. Source: over 1 year ago
Https://rockd.org/ is heading in that direction. Source: over 1 year ago
Anyway, have a good look on the Rockd app which I use a lot in the field to help understand the landscape. Have fun with it! Source: over 1 year ago
Well, you aren't doing to find dino bones but you may find quartz replacing carbonate fossils. It looks like you have quite a bit of chert there. Check out the app ROCKD (https://rockd.org/) to learn about the rocks around your home. The app also lists fossil and mineral occurrences around the area that you are. There are also several great geology & natural history museums around the county; including some real... Source: over 2 years ago
Maybe check out https://rockd.org/ It's user-generated but might be helpful. Source: almost 3 years ago
Dont know if this has been posted before...found a great geologic gps map for the phone called Rockd Rockd. Source: almost 3 years ago
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