Obedient Quarter Horse Gelding

Corpus Christi is situated on fluvial deposits that are of Holocene – Pleistocene age. Although no solidified rock occurs naturally at the surface, the Deweyville Formation of sand, silt, clay, and gravel, is locally indurated with calcium carbonate ( caliche) deposits. In 2017, Hurricane Harvey's storm surge eroded down to shale bedrock at a depth around 40 ft in Packery Channel, an artificial pass cut between North Padre and Mustang Islands. This feature has become a gathering place for game fish, and can be identified from the surface by its whirlpool-like current. The large, shallow bay makes Corpus Christi an ideal feeding place for birds, and this is one reason why Corpus Christi is known as the "Bird Capital" of North America.