Peter Sinks is a natural sinkhole in northern Utah that is one of the coldest places in the contiguous United States.

Peter Sinks is located 8,100 feet (2,500 m) above sea level, in the Bear River Mountains about 20 mi (32 km) east of Logan, within the Wasatch-Cache National Forest.

[5] Peter Sinks, sitting at an elevation of 8,164 feet or 2,488 metres, is a natural limestone sinkhole approximately one-half mile wide in diameter and has no valley outlet (referred to as dolines geologically) to drain water or air.

During calm cloudless nights, this high elevation basin dissipates daytime heat rapidly into the atmosphere.

[10] Peter Sinks' meteorological significance was discovered by Utah State University student Zane Stephens in 1983.

He then flew into Peter Sinks in a KUTV television station helicopter with broadcasting meteorologist Mark Eubank.