The best thing about these places is that large -- as in...

The best thing about these places is that large -- as in macroscopic -- buried fossilized material is usually weathering out of the outcrops. One can see them laying about and follow the fragments to the source. For microscopic fossils, of course, no clear obvious clues are usually present. The exception is large scale microbial mats like those that made stromatolites and algal travertiles and tufa.