San Antonio Canyon (Spanish: Cañón de San Antonio) is a submarine canyon located offshore San Antonio, Valparaíso Region, Chile.
[1] The canyon crosses almost the whole continental shelf.
[1] It has a slope of 2° from its upper parts near the coast to 80 km offshore, then slope increases to a mean of 6.3°.
[2] The main channel has a large tributary coming from the south.
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