I was on a Peace walk from Las Vegas to mercury, 50-60 miles north.
I took a side trip to a mountain just north west of Lost Wages...
mount Charleston..a very refreshing escape from the
desert and the bright lights of the city below...
maybe you could look up mud catter Teresa there...she can help
you find something real to do!! there is even folk music there!

http://www.hikinglasvegas.com/index.htm

Mt. Charleston is located just 35 miles northwest of Las Vegas, NV. During the summer it's 30 degrees cooler than Las Vegas. Charleston Peak (11,918 feet) is the highest point in southern Nevada.

http://www.hikinglasvegas.com/MtCharleston.html

http://www.hikinglasvegas.com/hikes.html
you might asee bristlecone pine trees

i would recommend NOT going to the Yucca Mountain Nuclear Waste dump
http://www.lasvegassun.com/dossier/nuke/