Our friend, David, is a rancher who has handled and sold thousands of cattle through the years. One particular part of the job of raising cattle is Roundup Time in the fall. All those animals have to gathered up so new babies can be branded, the unhealthy treated, older cows can be separated out to be sold or recreated as steaks, and the whole crowd counted and accounted.

Roundup is a huge undertaking covering every acre of the ranch. And unfortunately, most spreads are not blessed with just easily searched flat acres of lush knee-deep grass, well placed shade trees, and overflowing ponds ever...