I know you're big on geography.... so Boro is as much in Yorkshire, as Bormuff is in Hampshire
(altho this is a can of worms.... wish I hadnt mentioned it)
https://abcounties.com/counties/county-profiles/yorkshire/
The North Riding
In the eastern part of the North Riding are the hills of the North York Moors. The Cleveland Hills in this area plunge down to the sea at Whitby, home of Whitby Abbey, fishing and bracing holidays. The Cleveland coast is marked by the high cliffs that give it its name, Boulby Cliff being one of the highest in England. Wooded valleys, the wykes, tumble down from the high moors to the sea. In between pretty fishing villages such as Robin Hood’s Bay and Staithes nestle under the cliffs.
The mouth of the Tees, at the very northern bounds of Yorkshire, is an industrial centre. The main town being
Middlesbrough, ........
https://abcounties.com/counties/county-profiles/hampshire/
....Almost like an annex in the southwest of the county is the New Forest. The New Forest was laid out as a hunting reserve by William the Conqueror, but as broad woodland and heath it is far older. It is a timeworn place which appeals to one’s ancestral longings. Along the coast west of Southampton is a string of sandy resort towns, culminating in the Victorian splendour of
Bournemouth.
County Facts
County Town: Winchester
Main Towns: Aldershot, Basingstoke,
Bournemouth, Christchurch, Cowes, Newport, Petersfield, Portmouth, Ringwood, Ryde, Southampton, Winchester, Ventnor.
HTH