This is most likely a matter of local usage. I believe you will have to use a search engine like Google to research any particular case if the occasion arises. , Black Bear Pass) are more likely to be used without the definite article, but I have no proof of it.
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CalifJimMagda,
You have the perfect set-up here to learn a nice idiom.
this book keeps more surprises is written more idiomatically as this book has more surprises in store.