We'd be about 18+ minutes west of the Utah border in an airliner. I've flown over our place on the way to San Jose out of SLC before, passing through 30,000 feet for 35,000 feet.

When you're passing over Diamond Valley, you'll see a very tight concentration of pivots in a valley -- more pivots packed tighter together than in any other valley in east/central Nevada. You'll see them just north of a very bright set of lights on the ground that is a mine site. The road below you at this point will be US-50. I-80 will be about 90 miles north of the lower end of the valley.

Here's a satellite view of Diamond Valley and Eureka:

http://maps.google.com/maps?f=q&hl=en&q=Eureka,+NV&ie=UTF8&z=11&ll=39.717223,-116.021805&spn=0.455285,0.846634&t=k&om=1