The scale of North American geography boggles my tiny British mind, but we can see lots of similar features squished into the north of England, and meeting up with glacial deposits in the parts of Lancashire that I'm familiar with.
Preston is boulder clay/till over sandstone, turning to sand and gravel, and meeting mudstones and shales nearer the sea where they had a go at fracking until a small quake got it shut down 😎
futurebird