Nudging another topic out of retirement...
I was not overly impressed with any of the in-town caches in Amarillo. That's probably not because there aren't great ones, just that I didn't find many, and none that stuck out in my memory. For that, you have to go a little less than an hour, to Palo Duro Canyon. There, you have
Fissure of Fear, which I loved even though I DNFed it, and
Lost Canyon Cache. But the best one I did, predictably, is the only Terracache in the area,
Hole in the Ground. It's a little PNG only about half a mile from the park road that only took us about 4 hours to complete. And the scenery is breathtaking.
Matter of fact, there's a little event there
this weekend, if you're in the mood to try some.