High delay resolution (20 μsec) radar studies of the moon at 6-, 7.5-, and 12-meter wavelengths show that the echo strength at the leading edge peak and the total radar cross section are very sensitive to the position of the subradar point. These phenomena are explained in terms of a variable thickness, attenuating regolith. Furthermore, when the subradar point is in a region of what is believed to be thick regolith, the over-all backscattermg behavior of the moon is very nearly independent of wavelength in the 68-cm to 7.5-meter interval, and there is strong evidence that this is true over an even wider interval. For low angles of incidence, the angular power law is shown to be consistent with backscattering from a normally distributed surface with a Gaussian autocorrelation function and a unidirectional rms slope = tan 4.2°. At high-incidence angles, the quasi-specular scattering is thought to be due to reflections from bare rock surfaces. A crude estimate for the dielectric constant of the subregolithic material is made, resulting in a value of 13. The diffuse component of the echoes is thought to be primarily due to volume backscattering from within the regolith.