The purpose of this study is to investigate long term relationships between the ground thermal regime and soil moisture content in areas affected by wildfire. Three different-aged burns (1920's, 1990, 1996) near the Caribou-Poker Creek Research Watershed north of Fairbanks were selected for study. Ground temperature profiles were developed for burned and unburned sites at each location and showed that soils were warmer at the burned sites in each case. Permafrost was not found at the 1920's burn, indicating that permafrost degradation may be non-recoverable after a surface disturbance given the current climatic regime at the CPCRW location.