Mclouth Steel Corp Gibraltar Plt is a superfund site located at 28000 River Rd, Gibraltar, MI 48173. The Environmental Protection Agency (EPA) identifies sites such as Mclouth Steel Corp Gibraltar Plt because they pose or had once posed a potential risk to human health and/or the environment due to contamination by one or more hazardous wastes. Mclouth Steel Corp Gibraltar Plt is currently registered as an Active superfund site by the EPA. However, it is not on the NPL (National Priorities List), which means the EPA does not consider it one of the nation's most hazardous waste sites.