National Geophysical Data Centerبایگانیشده در آوریل ۳, ۲۰۱۵ توسط Wayback Machine, 1999. Bathymetry of Lake Huron. National Geophysical Data Center, NOAA. doi:10.7289/V5G15XS5 [access date: March 23, 2015]. (only small portion of this map)
"About Our Great Lakes: Tour". National Oceanic and Atmospheric Administration (NOAA), Great Lakes Environmental Research Laboratory (GLERL). Archived from the original on May 7, 2017. Retrieved December 15, 2017.
National Geophysical Data Centerبایگانیشده در آوریل ۳, ۲۰۱۵ توسط Wayback Machine, 1999. Bathymetry of Lake Huron. National Geophysical Data Center, NOAA. doi:10.7289/V5G15XS5 [access date: March 23, 2015]. (only small portion of this map)
"About Our Great Lakes: Tour". National Oceanic and Atmospheric Administration (NOAA), Great Lakes Environmental Research Laboratory (GLERL). Archived from the original on May 7, 2017. Retrieved December 15, 2017.