_Data Recovery_: In the context of cultural resource management (see definition) studies, data recovery refers to relatively large-scale excavation designed to remove important objects and information from an archaeological site prior to its planned destruction. Data recovery is only undertaken after it is shown that preservation of the site in place is not a feasible course of action in the project in question. Scientific data are recovered to answer important scientific and cultural questions. _Debitage_: A term meaning the characteristic types of stone flakes produced from manufacture of prehistoric stone tools by chipping (as, for example, stone spear and arrow points). One of the most common types of prehistoric artifacts, these distinctive flakes frequently alert the archaeologist to the presence of a prehistoric site. _Feature_, or _Archaeological Feature_: Many things of archaeological interest are portable, such as fragments of bone, pottery and stone tools. However, archaeological sites frequently contain man-made things that are not portable, but are part of the earth itself. Examples of these features are hearths, foundations of buildings, storage pits, grave pits and canals. _Hipped Roof Bungalow_: These are square to rectangular dwellings with hipped gable roofs, one or two front doors and four to five rooms arranged in a modular design. _Historic Sites_: Archaeological sites dating to the historic era, or after about the early seventeenth century in the project area. The distinguishing characteristic of this period is availability of written documents. This era extends from the earliest period mentioned in histories to the present. _Midden_: A word (adopted from the Danish language) meaning refuse heap. In many instances, one of the most apparent aspects of an archaeological site is “midden”, or a soil layer stained to a dark color by decomposition of organic refuse, and containing food bones, fragments of stone tools, charcoal, pieces of pottery or other discards. Archaeologists can learn a great deal about people’s lifeways by studying their middens. _Potsherds_ (or _sherds_): Pieces of ceramic vessels. Since the making of pottery did not begin in the project area until the first few centuries A.D., the presence of potsherds is a useful index of time. Also, the composition of the sherds and their decorative motifs are a highly useful way of detecting different prehistoric cultural groups, since manufacture and design of pottery varied with cultural groups. _Prehistoric Sites_: Archaeological sites (see _Site_) that date to a time prior to European contact (that is, before written history). In the project area that would be prior to the early seventeenth century. Prehistory is a relative concept, varying from one area to another, depending on the first intrusion of Americans or Europeans.