Idaho National Laboratory Cultural Resource Management Plan

isolates/isolated find. Archaeological evidence of limited human activity. On INL, practically defined as
an occurrence of less than 10 artifacts.
Keeper of the National Register of Historic Places. The individual delegated the authority by the
National Park Service to list properties and formally determine their eligibility for the National Register
of Historic Places. [Based on 36 CFR § 60.3(f)]
lacustrine. Pertaining to or produced by a lake or lakes.
Lake Terreton. An extensive shallow inland lake that covered a large portion of the northeastern Snake
River Plain during the Pleistocene period.
lanceolate. Lance- or leaf-shaped, referring to projectile points. Most commonly used in reference to
flaked stone knives (bifaces) or projectile points that are long, slender, and come to a point at one or both
ends.
late prehistoric period. A cultural manifestation dating between 1300 and 150 B.P. on the northeastern
Snake River Plain and marked by adoption of the bow and arrow. It is divided into two subperiods: Late
Prehistoric I (1300 to 750 B.P.) and Late Prehistoric II (750 to 150 B.P.), based on changes in projectile
point structure and form. Prehistoric ceramics also emerge as diagnostic artifacts of this period.
lava tube. During basaltic eruptions, fast-moving lava crusts over and forms tunnels filled with
fast-moving streams of lava. As an eruption wanes, the lava in these tunnels drains out, leaving empty
caves known as lava tubes within the cooled flows.
lifeway. The “what” and “who” of human culture, including settlement pattern, population density,
technology, economy, organization of domestic life, kinship, social stratification, ritual, art, and religion.
lithic. Of or relating to stone.
locus. A predicted archaeological site locality.
material culture. All physical items made or modified by human beings.
memorandum of agreement (MOA). A document that records the terms and conditions agreed upon to
resolve the adverse effects of an undertaking upon historic properties. [36 CFR § 800.16(o)]
memorandum of understanding (MOU). Similar to a MOA, a document expressing an understanding
among parties regarding regulations, actions, relations, etc.
midden. An accumulation of debris by biological agents such as packrats or humans. It may include plant
matter, bone, and shell fragments. For prehistoric sites, a layer of soil stained to a dark color by the
decomposition of organic refuse such as food bones, fragments of stone tools, charcoal, pieces of pottery,
or other discarded materials. For historic sites, a similar layer of soil, but with appropriate historic
material remains, often in a much thinner deposit.
middle prehistoric period. A cultural manifestation and ecological adaptive strategy dating between
8000 to 1300 B.P. on the northeastern Snake River Plain. It is divided into three subperiods: early (8000
to 5500 B.P.), middle (5500 to 3500 B.P.), and late (3500 to 1300 B.P.). These subperiods are based on
changes in projectile point structure and form. This Archaic lifeway is characterized by varied resource
utilization, including seasonal round adaptations, big and small game hunting, and gathering of vegetal
and seed foods.
mitigation. Action intended to reduce or compensate for the damage caused to historic or prehistoric
properties during a federal undertaking. Examples of mitigation include project modification to avoid
properties, detailed documentation of properties, and salvage of properties through controlled excavation
and data recovery.
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