||Gray, brown, green, maroon, and tan argillite, chert, lithic graywacke, tuff, conglomerate, limestone, and basalt. Unit includes the Cannery Formation, undivided, defined in Pybus Bay on Admiralty Island by Loney (1964). Graywacke and chert are dominant locally, sericitic cherty argillite is also locally dominant. Graywacke, tuff, and chert are commonly interbedded; grading and rhythmic layering indicates they were deposited as turbidites. Graywacke beds are 2 cm to 5 m in thickness. Graywacke is dominated by volcanic and calcareous rock fragments. Chert contains radiolarians and is intercalated with graywacke, tuff, limestone, and /or volcanic flows. Limestone forms beds up to 50 cm in thickness. Pillow basalt and tuff-breccia form sections up to 100 m thick, and are mapped separately when possible as PDcv. Basalt contains clinopyroxene and plagioclase phenocrysts. Total unit thickness estimated to be greater than 500 m. On Kupreanof Island unit includes gray chert, green chert, red chert, black cherty argillite, gray and green slatey argillite, gray silicified limestone, black siltstone and chert turbidites, graywacke turbidites, minor conglomerate, conglomeratic debris flows, tuff, and volcanic rocks. Also thin-bedded gray tuffaceous volcanic argillite and fine-grained gray tuffaceous volcanic graywacke; both weather bluish-green or reddish-brown and are intensely fractured; some very thin-bedded dark gray chert, silicified argillite, pillow flows, and gray clastic limestone. The volcanic flows are interlayered with graywacke northwest of Kake and on the northwest shore of Kupreanof Island. On Admiralty Island, the unit includes green mafic to intermediate volcanic and volcaniclastic rocks, with rare metachert on the east side of Pybus Bay. The volcanic rocks are inferred to grade laterally to chert and siliceous clastic rocks. Unit is subdivided into a lower chert member, a middle chert-graywacke member, and an upper argillite-chert member (Karl and others, 2010). In this report, undivided rocks of the Cannery Formation, and the lower chert and middle chert -graywacke members of the Cannery Formation are mapped with PDcc. Where they are sufficiently extensive, the upper argillite-chert member (PDcc) and a mafic volcanic member (PDcv), are mapped separately. A fossiliferous limestone (Ml) is stratigraphically equivalent to the middle chert-graywacke unit and underlies black siliceous slate of the Porcupine Slate (mapped with PDcc) south of the Klehini River. A thick section of black cherty and silty argillite with subordinate pillow basalt and thin limestone lenses between the Klehini and Takhin Rivers west of Haines.