Film transparency of the ruins of possibly the John T. Overbury building, Rhyolite, Nevada. Rhyolite is a ghost town in Nye County, Nevada. It is in the Bullfrog Hills, about 120 miles (190 km) northwest of Las Vegas, near the eastern edge of Death Valley. The town began in early 1905 as one of several mining camps that sprang up after a prospecting discovery in the surrounding hills. During an ensuing gold rush, thousands of gold-seekers, developers, miners and service providers flocked to the Bullfrog Mining District. Many settled in Rhyolite, which lay in a sheltered desert basin near the region's biggest producer, the Montgomery Shoshone Mine. Rhyolite declined almost as rapidly as it rose. After the richest ore was exhausted, production fell. The 1906 San Francisco earthquake and the financial panic of 1907 made it more difficult to raise development capital. In 1908, investors in the Montgomery Shoshone Mine, concerned that it was overvalued, ordered an independent study. When the study's findings proved unfavorable, the company's stock value crashed, further restricting funding. By the end of 1910, the mine was operating at a loss, and it closed in 1911. By this time, many out-of-work miners had moved elsewhere, and Rhyolite's population dropped well below 1,000. By 1920, it was close to zero. After 1920, Rhyolite and its ruins became a tourist attraction and a setting for motion pictures. Most of its buildings crumbled, were salvaged for building materials, or were moved to nearby Beatty or other towns, although the railway depot and a house made chiefly of empty bottles were repaired and preserved. The town is named for rhyolite, an igneous rock composed of light-colored silicates, usually buff to pink and occasionally light gray. It belongs to the same rock class, felsic, as granite but is much less common.