This is an online map that has many layers of information. You can get geological, geographical, topographical, tectonic, and dozens of other kinds of information just by selecting various layers to show.
Check it out!
National Map Viewer
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I've been learning something new lately. Permanent hardware in Surgical steel or whatever they used -- gets really cold , really fast. ...
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Saw this pic and I HAD TO post it here for Tom, just in case he didn't see it elsewhere. Hope this brightens your day a bit, buddy - an...
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Grief is a silent, indisious destroyer. Grief is a noisy explosion. Grief is a dark, dank pit with no way out. Grief is huge and overwhel...
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