For pilots who aviate in the Great Lakes region - including near the US/Canada border, the FAA's Green Bay Sectional Aeronautical Chart is a reliable source of aeronautical navigation data that should be a "no-go" item for every pilot who operates in the area. Like all charts in the FAA's immensely popular sectional series, the Green Bay Sectional provides a wealth of need-to-know aviation info that helps pilots maintain their situational awareness from takeoff to touchdown. Among its contents, this foldable, full-color chart is loaded with valuable aviation data including airport info (runway lengths, lighting, elevation, services available, surface type, etc.); airspace dimensions; VHF and LF/MF navigational facilities (frequency, ID, and channel); landmarks; cities & towns; elevation/topographic info; ATC entities and associated contact/radio frequencies; bodies of water; obstructions; and much, much more.The Green Bay Sectional covers the airspace over much of Wisconsin and Upper Michigan, including the US/Canada border region as well as a sliver of Eastern Minnesota. Uses the standard 1:500,000 (6.86 nm per inch; 2.70 nm per cm) scale characteristic of sectional charts. Updated every six months. A low-cost, info-packed source of relevant FAA data that no Great Lakes area aviator should ever fly without.