  We present evidence supporting wave reflection in the lower solar
chromosphere based on helioseismic analysis of multi-height Doppler data. This
evidence is derived through a wave propagation model that incorporates both
upward- and downward-traveling (reflected) waves. Moreover, we find that the
height of the reflecting region varies with magnetic field strengths in a way
that suggests a connection with the the plasma $\beta\sim1$ region. We measure
an effective reflection coefficient of $13\,\%$ in a magnetically quiet region
of the Sun.
