Known as the "Stone Slab Street" for its unique design, Pottinger Street originally ran from Queen's Road Central to Hollywood Road. Because of its steepness, it was paved, unevenly, with stone slabs to make it easier to ascend and descend and to allow rainwater to flow down either side. The government named it Pottinger Street in 1858 in memory of Hong Kong's first governor, but local Chinese still refer to it today as 'Stone Slab Street'.
(copy from https://www.amo.gov.hk/en/trails_sheungwan2.php?tid=3)
