Heceta Limestone

{{Short description|Geologic Formation in Alaska}}

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| name = Heceta Limestone

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| type = Formation

| age = Silurian

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| region = Alaska

| country = United States

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The Heceta Limestone is a geologic formation in Alaska. It preserves fossils dating back to the Silurian period.{{Cite journal|title = Silurian Sponges and Some Associated Fossils from the Heceta Limestone, Prince of Wales Island, Southeastern Alaska|url = http://www.bioone.org/doi/abs/10.1666/06-047.1|journal = Journal of Paleontology|date = January 1, 2008|issn = 0022-3360|pages = 91–101|volume = 82|issue = 1|doi = 10.1666/06-047.1|first = J. Keith|last = Rigby|first2 = David M.|last2 = Rohr|first3 = Robert B.|last3 = Blodgett|first4 = Brooks B.|last4 = Britt|url-access = subscription}}