Question: Which mine is located more east, Dome Mine or Hedley Mascot Mine?
Context: Cadia Mine is a series of large underground and open-cut gold and copper mines located in the Cadia Valley, about 20 kilometres south of the regional city of Orange, New South Wales, Australia.  The mine has been developed throughout the 1990s and is a major employer in the region with an expected lifespan of several decades.  Cadia is the second largest open cut mine in Australia after the Super Pit at Kalgoorlie.  Large mineral deposits are also being uncovered from the more recently developed Ridgeway underground mine, and Cadia East underground mine, adjacent to the Cadia Open Cut Mine. Crisson Mine was a gold mine in Lumpkin County, Georgia, USA, located just east of Dahlonega.  Like many mines in the area, the property probably started as a placer mine during the Georgia Gold Rush.  Once the placer deposits had been exhausted, an open pit gold mine was established in 1847 and commercial operations continued until the early 1980s.  A small stamp mill was also established here.  Much of the gold used for the gold leaf dome of the Georgia State Capitol was mined at this mine, which was among the most productive mine in the Georgia Gold Belt.  The mine is located just north of the site of the Consolidated Mine, which is itself north of and the Calhoun Mine. The Gregory Coal Mine is an open-cut coal mine located 60 km north east of Emerald in the Central Queensland, Australia.  The mine has coal reserves amounting to 159 million tonnes of coking coal, one of the largest coal reserves in Asia and the world.  The Bowen Basin mine has an annual production capacity of 5 million tonnes of coal.  Operations at the Gregory mine started in 1979.  Coal from the mine is exported to the Port of Gladstone via the Blackwater railway system. The Ida Dome mine is a large mine located in the western part of Namibia in Erongo Region.  Ida Dome represents one of the largest uranium reserves in Namibia, with estimated reserves of 53 million tonnes of ore grading 0.018% uranium. Dome Mine is situated in the City of Timmins, Ontario, Canada; and was developed during the Porcupine Gold Rush. Hedley is an unincorporated town in southern British Columbia, Canada, named after Robert R. Hedley, the manager of the Hall Smelter in Nelson.  Hedley is located at the foot of Nickel Plate Mountain in the Similkameen.  The town had a population of approximately 400 as of 2005.  In the early 1900s, Hedley's population peaked over 1,000 people, primarily due to the gold mining industry.  The Hedley Museum and the Mascot Mine Museum display artifacts and photographs from this era. Leviathan Mine is a United States superfund site (CERCLIS ID: CAD98067685) at an abandoned open-pit sulfur mine located in Alpine County, California.  The mine is located at on the eastern slope of the Sierra Nevada at about 7,000 ft elevation, 6 mi east of Markleeville and 24 mi southeast of Lake Tahoe.  The mine site comprises approximately 250 acre of land surrounded by the Toiyabe National Forest, which is only accessible a few months a year.  The approximately 22 million tons of sulfur ore-containing crushed rock at the mine are responsible for contaminating the Leviathan and Aspen Creek, which join with Mountaineer Creek to form Bryant Creek which ultimately empties into the East Fork of the Carson River.  These water bodies are listed as 303(d) impaired.  The site location is seismically active. The Rouchleau Mine is an abandoned open-pit mine within the Mesabi Iron Range at Virginia, Minnesota, United States.  The mine, located on the east side of the city, is roughly 3 mi long and .5 mi wide; its deepest point is 450 ft below its surface, making it one of the deepest mines in the range.  Named for Louis Rouchleau, who explored the area for its mining potential, the mine was initially created as a shaft mine.  It was converted to a pit mine by the 1930s due to improvements in open-pit mining technology and increasingly unstable terrain which made shaft mining unsafe. Corumbá is an iron ore mine located in the western Brazilian state of Mato Grosso do Sul, near the border with Bolivia.  The mine is located east of highway 262 about 15 km south of the city of Corumbá.  The mine is of open pit construction, producing approximately 2 million tonnes per year of iron ore which is partially processed on site before being moved by barge along the Paraguay and Paraná Rivers to shipping ports along the Atlantic coast.  The mine currently employs approximately 650 persons.  The mine is currently owned by Vale S.A., who acquired it from multinational mining giant Rio Tinto Group in 2009 for US$814M. The Hedley Mascot Mine was a gold mine in Hedley, British Columbia, Canada.  Gold was first discovered in the Nickel Plate Mountain area in 1897 and several small mines were developed over the years.  The Hedley Mascot Mine operated between 1936 and 1949 and was one of the most unusual mining operations in the world, being built entirely on the side of a mountain, 5,000 feet above the town of Hedley or seven thousand feet above sea level.  In the 1990s, the British Columbia government was going to burn the site down because it posed a safety risk, but the Minister of Tourism at the time intervened and, in 1995, steps were taken to preserve the site as a Provincial Heritage resource.
Answer: Dome Mine