Recreational use of snowmobiles is popular in New Hampshire during the winter months; from 1982 to 1992, the annual number of registered snowmobiles ranged from approximately 21,200 to 42,500. During this period, 26 deaths associated with use of snowmobiles in New Hampshire accounted for 822 years of potential life lost before age 65 years. To assist in the development and evaluation of injury-prevention programs for users of off-highway recreational vehicles (OHRVs) (e.g., all-terrain vehicles, trail bikes, and snowmobiles), the State of New Hampshire Department of Fish and Game (DFG) and the New Hampshire Department of Health and Human Services examined reports of injuries resulting from OHRV use in New Hampshire from January 1989 through February 1992. This report summarizes information about snowmobile-associated fatal and nonfatal injuries during this period.