  We define and study the $(\nu / \lambda)$-partial alternating sign matrix
polytope, motivated by connections to the Chan-Robbins-Yuen polytope and the
$\nu$-Tamari lattice. We determine the inequality description and show this
polytope is a face of the partial alternating sign matrix polytope of [Heuer,
Striker 2022]. We show that the $(\nu / \lambda)$-partial ASM polytope is an
order polytope and a flow polytope.
