U.S. Regional Climate and Ecological Zones Map #2110820 (License: Personal Use)

The map divides the contiguous United States and Alaska/Hawaii into three primary zones using distinct colors: red covers the northern tier including Canada-border states and Great Lakes region; blue outlines coastal and marine-influenced areas such as the Pacific, Atlantic, Gulf, and Great Lakes shores; green highlights the arid and semi-arid Southwest including Arizona, New Mexico, Nevada, and parts of California and Texas. Insets show Alaska and Hawaii with corresponding zone coloring.

Used in educational resources, environmental science articles, or government reports to explain regional climate patterns, biodiversity, or land-use planning; targets students, researchers, and policy makers seeking geographic context.