Phase II archaeological test excavations were conducted at five prehistoric archaeological sites below Stockton Dam. The sites were tested to determine their eligibility for inclusion in the National Register of Historic Places. The sites are considered small extractive or limited activity camps of the Woodland period situated in different econiches in the floodplain. Sites 23CE324 (the J. Jones site) and 23CE235 (the B. Jones site) cannot be considered significant because their data-producing potential has been assessed as essentially exhausted during the Phase II program. Site 23CE252 (the Ronnie Pyle site) is considered significant for its potential to contribute further information concerning regional research problems in this part of the prairie-forest border. Shallow but intact cultural deposits are present at the site. Sites 23CE240 and 23CE241 were found to be extremely low-density, limited activity camps on alluvial surfaces probably dating from the Woodland period to the present and are assessed as ineligible for National Register listing. Keywords: Archeology; American Indians. (edc).