Ann Trieu continues to work on her dissertation on Chinookan household economies from an ethnobiological perspective.  Closely related to this topic she is completing revisions on a chapter on Chinookan Ethnobiology in a volume titled Chinookan Studies, edited by Ken Ames and Robert Boyd, to be published in 2006 by University of Washington Press in 2006.  This year other work centered in the Chinookan area of the Lower Columbia River Region included a paleoethnobotanical project at the St. John’s house site.  Further afield, she worked on ongoing paleoethnobotanical research at the Tseriaden site located on the southern Oregon coast and at early sites from Prince of Wales Island, Alaska investigated by James Dixon and Craig Lee of the Institute of Arctic and Alpine Research, University of Colorado at Boulder. 

In conjunction with a long term project examining basketry materials from the Northwest Coast and Plateau she gave a paper with Lynn Beard at the Northwest Meetings titled “How Accurate are Ethnographic and Historical Accounts of Beargrass (Xerophyllum tenax) Use in Plateau Flat Twined Bags?”  Now she has turned to exploring the materials used in an unusual and little studied form of basketry known as vertical twined weaving or warp twined basketry with samples from the Burke Museum at University of Washington and from several private collections.  This year also saw the completion of the volume Northwest Coast Household Archaeology co-edited with Liz Sobel and Ken Ames, to be published by International Monographs in Prehistory and available for the 2006 SAA meetings.  With co-author Lee Newsom, she submitted a chapter in the Smithsonian’s Handbook of North American Indians, Volume 3, titled Introduction and Adoption of Old World Crops, Orchard, and Garden Plants by Native North Americans.  She continues volunteer service for the University of Oregon’s Museum of Natural and Cultural History and recently accepted nomination to their Board of Directors.