Tsegi Black-on-orange is a type of Tsegi Orange Ware produced at Marsh Pass and in the Tsegi canyons of Navajo County, Arizona.

Archaeological Culture: Ancestral Puebloan

Date Range: A.D. 1225 to 1300.

Construction: By coiling and scraping.

Firing: In an oxidizing atmosphere.

Core Color: Black to gray, dark brown (rare) to brick-red.

Temper: About equal amounts of quartz sand and crushed sherds; temper is noticeable on surfaces and sometimes conspicuous, especially on worn or polished surfaces.

Surface Finish: Usually somewhat bumpy, sometimes polished; scraping and polishing marks often invisible but sometimes conspicuous, sometimes pitted; both surfaces of bowls compacted.

Surface Color: Orange; surface and core usually do not contrast.

Forms: Bowls predominate, dippers rare, and jars uncommon.

Vessel Thickness: 3.1 to 6.7 mm; average 4.8 mm.

Decoration:

• Paint: Black.
• Pigment: Manganese.
• Design: Bowls: 2-5 horizontal lines on interior surface just below rim; occasionally one stripe below rim; wall decoration scarce; sometimes hachured panel or series of parallel lines; bowl bases undecorated; frequently rim painted with wide lines.

Other Names: Plain Yellow Ware

Compiled from the following sources:
Colton, Harold S. (1956) Pottery Types of the Southwest. Museum of Northern Arizona Ceramic Series No. 3. Flagstaff, Arizona.

Compiled by:
April Peters, Northern Arizona University Anthropology Laboratories.