The city of Sahneh, located 54 kilometers northeast of Kermanshah in the central Zagros passage, plays a crucial role as a strategic crossroads, linking the Iranian central plateau to Mesopotamia and connecting the internal plains of Kermanshah to Hamadan. Archaeological surveys in Sahneh County, conducted in 2003, employed the site survey method, whereby all ancient sites were studied in terms of their geographical location and settlement sequence. This approach provides the necessary data for interpreting the settlement history of the region. As a result of this field research, for the first time, two archaeological sites containing cultural materials from the Middle Elamite period were identified in this area. This discovery significantly extends the cultural domain of the Middle Elamite period in the Zagros toward the east and northeast, indicating that the influence of this civilization extended beyond its known centers in the southwestern provinces of Iran (such as Khuzestan, Kohgiluyeh and Boyer-Ahmad, Fars, and Bushehr) as far as Kermanshah Province. Given the importance of these findings, further surveys were carried out in 2024 and 2025 to identify Middle Elamite sites in Sahneh. Following this research, two additional sites with Middle Elamite cultural materials were discovered. These findings not only confirm the existence of an active cultural-commercial corridor in this region but also highlight the necessity of revising cultural-geographical maps and historical developments of the Middle Elamite period in the central Zagros. Continued studies and targeted excavations at these sites can clarify the role of this region in the network of cultural interactions between the Iranian Plateau and Mesopotamia and are expected to lead to a fundamental reassessment of current perspectives on the history of this era.