A sinkhole was discovered late Tuesday afternoon at the intersection of two Deer Valley Resort ski runs, the resort reported, in what could be another high-profile episode involving a site tied to Park City’s mining heritage. Emily Summers, a Deer Valley spokeswoman, described the sinkhole as being large. A consultant working for Talisker Mountain Incorporated-controlled United Park City Mines and the Montage found the sinkhole, she said. The sinkhole is situated at the intersection of the Custer and Webster ski runs, in the Lady Morgan section of the resort. The location is approximately 1,000 feet north of the Montage. A Deer Valley crew barricaded the site and posted warning signs. Summers said the sinkhole appears to be related to a historic mining operation. Silver mining was the prime industry in Park City in the 19th century and the early decades of the 20th century, and there are numerous sites dotting the mountains dating to the mining era. The Tuesday discovery follows less than a month after a mine shaft located in Empire Canyon caved in, leaving a gaping hole in the ground approximately midway up the canyon.