Sign up for the free version of RideWithGPS and look in the Find section of the website. It will contain all the routes that others have uploaded in your area. You can select as many routes as you want and copy them to your routes page so you can have them when you want them. The RWGPS app is one of the very few phone apps that provides turn by turn so you may want to consider downloading it to your phone. I'm not sure how it will work in the deserts of Nevada but it's worth a try and it won't cost you anything.