This report presents the findings of Phase II investigations conducted at sites 11-T-205, 11-T-240, and 11-T-243 within Farmdale Reservoir, Tazewell County, Illinois. The Rock Island District, U.S. Army Corps of Engineers, is engaged in an ongoing management and evaluation program of archaeological sites on Federal lands within Farmdale Reservoir. Although the sites are not threatened by any currently proposed activities, they may be adversely impacted by future recreational activities and erosion. Therefore, an evaluation of the potential eligibility of sites 11-T-205, -240, and -243 for listing on the National Register of Historic Places (NRHP) is required. Sites 11-T-205, -240, and -243 are prehistoric lithic scatters situated on the first terrace above the Farm Creek floodplain. Each of the sites is wooded, and none appears to have been disturbed by modern cultivation. Each of the investigated sites is small, and artifact density and artifact class diversity are low, suggesting sites 11-T-205, -240, and -243 functioned as field camps. No temporally diagnostic artifacts were recovered at the sites during the present investigation, but an occupation dating to the Middle Archaic period was identified at site 11-T-205 during an earlier survey.