・A letter written by a missionary in the 16th century describes that a cross was set up in Ushiwaki Forest.
・In 2009, archeological excavation discovered human bones contained in wooden coffins buried according to the burial method unique to Christians (the body was laid down in the coffin).
・The site where a cross was set up by a missionary of those days has been handed down as a sacred place from generation to generation in the community.
・This is a valuable site where, as described in a letter written by a missionary, remnants were found in excavation research.