High Quality Content by WIKIPEDIA articles! Indian Castle Church is a historic mission church at Indian Castle in Herkimer County, New York. The church is located on NYS Route 5S near Danube. It is a one-story, rectangular wood frame structure, clad in clapboard with a gable roof and steeple. To the rear of the church is a burial ground containing the remains of both Mohawk and white men. It was erected in 1769 as an Indian mission church.