The Park City Police Department on Sunday night received a complaint about a party at a house involving people who were reportedly not wearing masks and were not social distancing, a case that was logged amid the continuing spread of the novel coronavirus and at a crucial time for the community’s tourism industry. The police received the report at 11:30 p.m. on Deer Valley Loop, a street off Deer Valley Drive along the entryway to Snow Park. The police were told there were 40 people at the house. The person who contacted the Police Department indicated they had an understanding that a gathering like the one on Deer Valley Loop was prohibited under rules designed to curb the spread of the sickness.