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Hi all y'all. I'm curious about learning more about our local geography to learn more about the context for fossils I find around here. I know a little bit, but not a ton and I'd love to learn more. I think I should probably start with what's exposed at the surface at my house. We're in the Balcones Fault Zone, and I've seen this spot mapped as both undifferentiated Fredricksburg Group and as Edwards Group. We've got a little intermittent creek with a deep enough valley/canyon that there's probably a 50' elevation difference between the highest and lowest areas. Being