  Let $G$ be a connected semisimple real algebraic group and $P<G$ be a minimal
parabolic subgroup with Langlands decomposition $P=MAN$. Let $\Gamma < G$ be a
Zariski dense Anosov subgroup with respect to $P$. Since $\Gamma$ is Anosov,
the set of conjugacy classes of primitive elements of $\Gamma$ is in one-to-one
correspondence with the set of (positively oriented) maximal flat cylinders in
$\Gamma\backslash G/M$. We describe the joint equidistribution of maximal flat
cylinders and their holonomies as their circumferences tend to infinity. This
result can be viewed as the Anosov analogue of the joint equidistribution
result of closed geodesics and holonomies in rank one by
Margulis--Mohammadi--Oh.
