The Marvel experiment was conducted at the Nevada Test Site in a horizontal, air-filled tunnel 1 m in diameter and 122 m long, 176 m below the surface. A 2.2kt nuclear device was detonated at one end of the tunnel. The primary purpose of Marvel was to develop experimental and calculational techniques for understanding energy propagation in a nonspherical initial geometry. This paper briefly describes the Marvel experiment, some of the experimental techniques used, and agreement of the numerical calculations with the experimental data. The favorable comparison between experimental data and the calculations implies that the calculations can be used as a predictive technique for similar nonspherically emplaced experiments.