1. 
   Up-over
   • (a.) Designating a method of shaft excavation by drifting to a point below, and then raising instead of sinking.
   Found op http://thinkexist.com/dictionary/meaning/up-over/
   
   
2. 
   Upper Hanover
   The Lower Colorado River Valleyextends from from Hoover Dam—Lake Mead in Nevada,south through the Mojave Desert and Sonoran Desert in California and Arizona,to the Colorado River Delta at the Sea of Cortez—Gulf of California in Mexico. ...
   Found op http://en.wikipedia.org/wiki/Upper_Hanover
   
   

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