Velen is a country. The Counties are Mudplough, Grayrocks, The Descent, Crows Perch (also the Capitol), Crookback Bog, Bald Mountain, The Mire, and Spitfire Bluff. Essentially everything South and West of the Pontar River is Velen. Oxenfurt is the only thing in the River that is part of Novigrad. Novigrad is both a Country and the Capitol. The Country of Novigrad is everything North and East of the Pontar that isn't White Orchard which is currently being occupied by Nilfgardian Forces (Novigrad).