Schieffelin Hall is a building from the American Old West in Tombstone, Arizona Territory, the largest standing adobe structure still existent in the United States southwest.

When the hall opened on the corner of Fremont and Fourth Streets on June 8, 1881,[2] it seated 450 on the floor and 125 more in the gallery.

The building was the center for city entertainment and social events in Tombstone with formal balls and theatrical performances.

When it opened, it was "the largest, most elaborate theater between El Paso, Texas and San Francisco, California."

Schieffelin, his brother Ed, and their mining engineer partner Richard Gird formed a partnership, shaking hands on a three-way deal that was never put down on paper.

Justice of the Peace Wells Spicer, who figured prominently in exonerating the Earps and Doc Holliday of murdering Cowboys during the Gunfight at the O.K.

[6] Schieffelin Hall hadn't been maintained since 1917, and in 1963 it was restored and renovated by Historic Tombstone Adventures, which was formed to preserve many of the town's landmarks.

In 1999, the adobe walls were repaired, the lobby and auditorium floors were refinished, and the rear of the building was covered with a metal roof.

[9] As of 2015[update], the building is used for plays, city council meetings, local social gatherings, fundraisers and theatrical performances.