This collection consists of data developed from University of Montana excavations of Housepit 54, Bridge River site, British Columbia. The Bridge River Archaeological Project began in 2003 and continues today as a collaborative partnership between the University of Montana and Xwísten, the Bridge River Indian Band.

There are two parts to the collection. First, there are supplemental data from the book Household Archaeology at the Bridge River Site (EeRl4), British Columbia: Spatial Distributions of Features, Lithic Artifacts, and Faunal Remains on Fifteen Anthropogenic Floors from Housepit 54, published by the University of Utah Press in 2022. The book covers spatial analyses of 15 superimposed anthropogenic floors from a large pithouse from interior British Columbia occupied between about 1450 and 1100 years ago drawing on excavation data from the 2013 to 2016 field seasons. (The supplemental figures from this book are also available.)

Second, there are the final botanical, faunal, and lithic artifact data sets from all field seasons spanning 2013 to 2022 along with guides to lithic and faunal codes and excavation terminology.