Of Gothic design, Trinity United Methodist Church was built in 1887 of light beige rhyolite from Castle Rock. The architect, Robert S. Roeschlaub, was responsible for many major buildings in Denver.
Although this was his first, it is considered by many to be his finest. The large nave seats 1,200 to 1,300 people, and the space has often been used for lectures and concerts. One of its outstanding features is a large pipe organ designed by G.A. Audsley of London. Built by Hilborne Roosevelt of New York, it is one of only twelve known Roosevelt pipe organs in the country.