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Yes! Geologic maps show the types of rocks that occur in particular
places. These maps use different colors to indicate different kinds of rocks.
Sedimentary rock is often represented by shades of brown, yellow, and green.
Since it's easier to dig fossils that are exposed at the surface, you can also
use geologic maps to locate outcrops—places where a type of rock appears at
the surface.
So if you look for sedimentary rock from the Mesozoic era that's exposed at the
surface, you'll be guaranteed to find a dinosaur fossil, right? Well, it's not
that easy. The chances that a dinosaur's remains were fossilized is rare. And,
the chances that a rock preserving a fossil wasn't destroyed by erosion or
tectonic movement is even smaller.
But, don't give up! With some patience and knowing the right places to dig, you
might be the next to unearth a dinosaur fossil. In the meantime, there are some
known sites in North America where you're just about guaranteed to find
dinosaur fossils.
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