Bc 50 – Tseh So
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A small residential structure located just east of Casa Rinconada and a ½ mile south of Pueblo Bonito. This rectangular building, also known as “Tseh So,” had twenty-six ground-floor masonry rooms with four kivas along the east side. The excavators also identified substructure and superstructure components of the building indicating multi-story architecture
Ceramic evidence at Bc 50 suggests a long period of occupation primarily centered during the A.D. 900s to 1000s. Opinions differ on whether this occupation was continuous or periodic. Excavations below the building revealed traces of an earlier Basketmaker occupation.
Two reports from the University of New Mexico Field School excavations were published in (1937 and 1939). You can access these reports on the CRA Digital Monographs page.
Alternate site names include Tseh So, 29SJ394, and LA40394.
- 1936-1939, 1947: Excavated by Donald Brand, Florence Hawley, Frank Hibben, Wesley Bliss, Nan Glenn, Barbara Clark, F. Seltzer, Donovan Senter, Gordon Vivian, Raymond Rixey and the University of New Mexico/School of American Research field schools.
- 1947: Excavated by Gordon Vivian and Raymond Rixey of the National Park Service.
Size and Dates
- Approximately 26 rooms and 4 kivas.
Site and Room Data
- Aztec West Ruins
- Bc 50 - Tseh So
- Bc 51
- Bc 53 - Roberts' Site
- Bc 57
- Bc 58
- Bc 59
- Chetro Ketl
- Pueblo Bonito
- Pueblo del Arroyo
- Talus Unit #1