System Directory

Free

1.81for iPhone, iPad

Harbor House Publishers

Developer

Apr 13, 2018

Update Date

Business

Category

Age Rating

Apps in this category do not contain restricted content.

Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

System Directory Screenshots

iPad

iPhone

About System Directory

This interactive maritime transportation publication provides an overview of the Great Lakes St. Lawrence Seaway System, identifying its physical characteristics, the commodities it handles, the locks, the ports and its role in the North American economy. Coverage includes new technologies, efficiencies and initiatives that define the unified system, known as Highway H20, as an international transportation system.