Valley 
To dream of a valley indicates your life will soon see change. These changes will bring with them much needed happiness and peace of mind.
Canyon
To dream about a canyon indicates your subconsciousness and suppressed or disguised emotions. This could indicate intuition or feelings and relationships that you were unaware existed within your own life.
Ravine
A ravine in a dream represents a dark place where you hide your deepest emotions.
To be trapped in a ravine in a dream indicates that you are overwhelmed by your emotions and feel cut off from your friends. It might be time to reach out and overcome loneliness. It may help to discuss your secret feelings with others.
Ghost Town
If you see a ghost town in your dream, it indicates the feeling of complete loneliness in an endeavor that should have gathered a huge support of network. Perhaps you're reinitiating a project or idea that has been abandoned by many thus isolating yourself from others.
Alternatively, the dream may be suggesting that it is time to let go of your past and get use to the present times.
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