Osimiri Caroní bụ osimiri nke abụọ kacha mkpa na Venezuela, nke abụọ na-erute, na otu n'ime ogologo, 952 kilometres (592 mi) sitere na Tepui Kukenan, ebe o sitere na otu aha Kukenan, rue nkwekorita ya na Osimiri Orinoco nke o nwere. A na-etinye aha ahụ "Caroni" malite na njikọ nke Kukenan na Yuruani, na 182 kilometres (113 . site na isi iyi Kukenan na 770 kilometres (480 mi) site na mwepụ ya na Orinoco. Nzukọ ahụ na-ewere ọnọdụ na ndịda Venezuela, na Bolivar State, ịbụ akụkụ kachasị mkpa nke Orinoco, nke na-abụkarị n'ihi ọnụ ọgụgụ dị elu. Basin dị elu nke Caroni dị na Gran Sabana ( Canaima National Park ) dị nso na ókèala Brazil. Caroni bụ otu n'ime osimiri nwere oke mpụta kacha elu n'ụwa, n'ihe gbasara ebe mmiri dị na ya. Nkezi mwepu bụ ano puku nari itghehite na iri use cubic metres per second (171,000 cu ft/s), nwere mgbanwe dị iche iche nke oge mmiri/akọrọ na-akpata.