We know very little about the structure of neutron-rich, weakly bound nuclei. We know even less about the way they rotate. In this work, the high-spin behavior of deformed neutron-rich nuclei is studied. In particular, quasi-particle Routhian spectra of heavy Er isotopes are discussed within the deformed shell model, and rotational properties and isovector shape deformations of heavy Ne and Mg isotopes are studied with the self-consistent cranked Skyrme--Hartree--Fock theory.

PACS numbers: 21.60.Jz, 21.10.Re, 23.20.--g