Smithson Mining operates a silver mine in Nevada. Acquisition, exploration, and development costs totaled $5.8 million. After the silver is extracted in approximately five years, Smithson is obligated to restore the land to its original condition, including constructing a wildlife preserve. The companys controller has provided the following three cash flow possibilities for the restoration costs: (1) $520,000, 20% probability; (2) $570,000, 35% probability; and (3) $670,000, 45% probability. The companys credit-adjusted, risk-free rate of interest is 6%. (FV of $1, PV of $1, FVA of $1, PVA of $1, FVAD of $1 and PVAD of $1) (Use appropriate factor(s) from the tables provided.)

1. What is the book value of the asset retirement liability at the end of one year? (Enter your answer in whole dollars.)