The Delaware Valley Opera Company (originally incorporated as the Delaware Valley Lyric Opera Guild) was started in 1979. The intention of its founders was to offer a stepping stone for singers, providing training and education through exposure to all facets of operatic production, and performance opportunities in a variety of operas. During the first year, two operas and a concert were produced at various Center City locations while a permanent space was sought. In 1981, the Company discovered the Hermitage Mansion, one of Philadelphia's historic Fairmount Park homes, and began to lease it from the City. A year later, an outdoor stage was built in the natural amphitheater behind the Mansion and became the Paul D. Osimo Outdoor Theatre. The Mansion serves also as the Company's administrative base, rehearsal space, costume and scenery storage site, and the location for its Winter Concert Series in the living room. The primary focus of the Company is its Summer Festival - three operatic productions in June, July and August in the Osimo Theatre. Indoor events are held at the Hermitage Mansion, Henry Ave. at Hermit Lane in Roxborough. Outdoor events are held at the Paul D. Osimo Outdoor Theater in back of the Hermitage Mansion. Bring a lawn chair and flashlight.