The playing field lay far below us and was shaped like the letter I, with a long, narrow alley and end zones that jutted out at right angles like the base and cap of that letter. The walls of the alley were close to ten meters high, sloped at the bottom so the ball wouldn’t get stuck in an angle of the wall. A green line at the midpoint of the alley divided the court in two, and the field itself was further divided into quarters, each painted a different color: red, blue, black, and white, the four colors of the Aztlaner "tree of life."