The remnants of past community activities on the banks of the Brantas tributary in the Sumobito District have raised problems regarding the site's function. Are the sites located on the riverbank a river port site as the entrance to the Majapahit city area in the Trowulan area? This paper aims to determine the function of the site and answer the problem of access to the city of Majapahit in Trowulan, Mojokerto, especially from the northwest.Adanya sisa-sisa aktivitas masyarakat masa lalu di tepi anak Sungai Brantas di wilayah Kecamatan Sumobito, memunculkan masalah mengenai fungsi situs tersebut. Apakah situs-situs yang terletak di tepi sungai merupakan situs Pelabuhan sungai sebagai jalan masuk ke wilayah kota Majapahit di Kawasan Trowulan...