Randall Miskin » Grangeville High School Staff Directory Go back to directory. Add to Address Book. Randall Miskin Principal Grangeville High SchoolAdministration Other 910 South D Street, Grangeville, ID 83530 postal Work Phone: 208-983-0580work Work Email: miskinr@sd244.orgINTERNET Categories: Administrators, Grangeville High School, Uncategorized Updated 5 months ago.