Old Trinity Church was constructed by English settlers on private land patented in 1671 before the Vestry Act created thirty-two Church of England parishes in Maryland. This tiny architectural gem continues to house an active congregation of the Episcopal Church, worshipping in a style compatible with its restoration (11 am Sunday).

Old Trinity is located on MD Route 16, in Church Creek, five miles from the Blackwater National Wildlife Refuge. Old Trinity Church Road is 8 miles southwest of the US Route 50 junction of MD Route 16. (Opposite - Hyatt Chesapeake Bay)

The cemetery contains the graves of veterans of every American war, Governor Thomas Carroll of Maryland, his daughter Anna Ella Carroll, and several bishops of the Episcopal Diocese of Easton. Behind the apse is buried Bishop William McClelland, who as Rector in 1927, established the first of several endowments to provide for the care and maintenance of the Church and graveyard. Framed by ancient trees, the cemetery is meticulously kept and continues to be in active use. In 2008 a project restored the shoreline in an environmentally sensitive manner. Conservation and wildlife buffers are being planted.

The grounds of Old Trinity Church and Cemetery are open daily from dawn to dusk. Tours are by appointment. Old Trinity is located one mile west of the town of Church Creek, eight miles from Cambridge, MD on Maryland Route 16, called "Taylors Island Road" at the point it intersects "Old Trinity Church Road."