Enrique Simpson Baeza (ValparaÃÂso, 1835âÂÂValparaÃÂso, May 17, 1901) was a Chilean Navy officer and explorer. Simpson mapped the archipelagoes and coast of Aysén Region onboard of the corvette Chacabuco in the 1870s. Among his feats is the re-discovery of San Rafael Lake and the insight that Aisén Fjord provides the best access to the interior of Patagonia from the Pacific.
Simpson River is named after him.