Tectonic Unit: uKY Name: Yakutat Description: flysch of greywacke-conglomerate channels in shale-siltstone turbidite; uKYm melange of upper Triassic to Valanginian blocks in a Berriasian to Campanian matrix; marine Formation: Insular Belt Yakutat Terrane uK Yakutat Age Range: Upper Upper Cretaceous Maximum Age: 88.5 Ma Minimum Age: 65.0 Ma