She comes down from Yellow Mountain
On a dark, flat land she rides
On a pony she named Wildfire
With a whirlwind by her side
On a cold Nebraska night

There is no Yellow Mountain in Nebraska that I know of.  But to everyone who thinks Nebraska is flat, think again.  Until I started riding horses, I never knew the diversity Nebraska lands had to offer.  From the bluffs along eastern Nebraska's Missouri River to the Sand Hills of Western Nebraska to terrain in northwestern Nebraska that I did not know existed -- experience Nebraska from between the ears of your horse.  And you'll be seeing it as if it were the first time. 

About 1/4 of Nebraska is covered by The Sand Hills.  Covered with prairie grasses, the dunes were formed at the end of North America's most recent ice age by wind-blown particles originating from regions to the north and west of Nebraska. The Sand Hills sit atop the massive Ogallala Aquifer, and marshes and shallow lakes are common in the Sand Hills. The eastern and central sections of the region are drained by tributaries of the Loup River and the Niobrara River.  Today, the Sand Hills is one of the most productive cattle ranching areas of the United States.  Many of these ranchers have opened up their property to be enjoyed by horse trail riders.  You will find no other land in America like the Nebraska Sand Hills.