Long-term trends in the seasonal thaw layer (active layer) may be an indication of a changing arctic climate. The objective is to present the change in active layer thickness (ALT) over a 10 year period at a site near Barrow, Alaska. Soil temperature readings were electronically recorded every two hours at soil depths of 0, 5, 10, 15, 20, 25, 30, 35, 45, 70, 95, and 120 cm, from 1993 to 2004. Readings were continuously recorded using a Campbell CR10X data logger and an MRC temperature probe. The soil is a Fine-loamy, mixed, superactive, pergelic Typic Aquiturbel. Zero degrees Celsius between depths was determined by linear interpolation. From 1993 to 1996, the maximum ALT ranged from 31 to 38 cm. From 1997 to 2003, the maximum ALT ranged from 45 to 64 cm, with the higher ALT depths occurring in 1997 and 1998, and decreasing steadily to 45 cm in 2003. In 2004, the maximum ALT increased to over 70 cm. The same trends were also seen in the length of time the active layer was present at a depth of 30 cm. In conclusion, there is an overall increasing trend in the ALT from 1993 to 2004 at this site near Barrow, Alaska. Changes in the near-surface temperature regime can have impacts on soil processes such as storage of soil organic C and near-surface hydrology.