The Albuquerque box is a set of predictable winds: at low levels they tend to blow from the north, and at higher levels from the south. Pilots climb a little, drift south, climb further, drift back north and then descend, flying a vertical box that can return them to the launch park or close to it. It is one reason the Balloon Fiesta works so well in the cool October mornings.
Questions people ask
What is the Albuquerque box?
A pair of opposite-direction winds at different altitudes that let balloons fly out and return.