e/Ruby–Poorman mining district

Information
has gloss	eng: The Ruby-Poorman mining district in the U.S. state of Alaska produced nearly a half million ounces of gold, all from placer mines. Some of the largest gold nuggets found in Alaska are from the district, which lies along the Yukon River. The placers are mostly deeply buried, and most were originally worked with shafts and drifts. Dozens of creeks in the district were mined, many more bear gold prospects. Cassiterite, platinum, scheelite, allanite, and native bismuth have been recovered along with gold from placer mines in the district.
lexicalization	eng: Ruby-Poorman mining district
lexicalization	eng: Ruby–Poorman mining district
instance of	c/Alaskan gold rushes