We have studied theoretically, using deformed Hartree-Fock and angular momentum projection, the structures and spectra of excited large K configurations of multi-quasi-particle nature (upto 8 quasi-particle) for heavy Hafnium nuclei. Not much is known experimentally about such multiquasi-particle configurations and their band structures. We have theoretical results for the spectra and E2 and M1 matrix elements of such excited bands. For 170Hf, e.g. we have K= 18-, 20- six quasi-particle bands and K=26+ eight quasi-particle band. The later band-head is yrast at excitation energy of 7.3 MeV. We have a 10 quasi-particle high K band with K=32- of band-head energy 10.7 MeV which is also yrast. So we have several large K yrast configurations extending to J above 50ħ. The E2 and M1 properties of these bands are also studied. The spectroscopy of such bands, their electromagnetic properties and decay modes need to be studied experimentally. We acknowledge the support of Department of Science and Technology, Govt. of India (DST Project: SB/S2/HEP-06/2013).