Pir Kuh-e OlyaPir Kuh-e Olya is a village in, and the capital of, Pir Kuh Rural District in Deylaman District of Siahkal County, Gilan province, Iran.DemographicsPopulationAt the time of the 2006 National Census, the village's population was 661 in 201 households. The following census in 2011 counted 541 people in 177 households. The 2016 census measured the population of the village as 588 people in 203 households. It was the most populous village in its rural district.