Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Erhai iri pamamita 1,972 (6,470 ft) pamusoro pegungwa. Mukukura, kureba kweNorth-South kwegungwa iri makiromita makumi mana (25 mi) uye hupamhi hweEast-West ingangoita makiromita manomwe nemasere (4,3 <unk> 5,0 mi). Nharaunda yaro ndeye 250 square kilometres (97 sq mi), ichiita kuti ive yechipiri pakukura kudunhu rakakwirira reChina, mushure megungwa reDianchi. Denderedzwa rayo rinosvika makiromita 116 (72 mi), avhareji yayo yakadzika ndeye 11 metres (36 ft) uye huwandu hwese hwekuchengetedza huwandu hwemamirioni 2.5 emamirimita cubic (2,000,000 acre⋅ft).  Mubvunzo: Dziva reErhai rakakura sei?
urefu North-South of the lake is 40 kilometres (25 mi) uye kumabvazuva-kumadokero upamhi anenge 7<unk>8 kilometres (4.3<unk>5.0 mi).