The physiographic regions of the contiguous United States comprise 8 divisions, 25 provinces, and 85 sections. [1] The system dates to Nevin Fenneman's report Physiographic Divisions of the United States, published in 1916. [2] [3] The map was updated and republished by the Association of American Geographers in 1928. [4]

2017年3月17日 · The contiguous United States (the 'Lower 48') are divided into physiographic provinces according to their geomorphology. Geomorphology refers to the physical features and processes of landforms, and their relation to geologic structures.

2024年9月17日 · It was automated from Fenneman's 1:7,000,000-scale map, "Physical Divisions of the United States," which is based on eight major 1946 divisions, 25 provinces, and 86 sections representing distinctive areas having common topography, rock types and structure, and geologic and geomorphic history.

2009年8月27日 · in this map is the regional classification shown here. Geomorphic, or physiographic, regions are broad-scal e subdivi si ons based on terrain texture, rock type, and geologi c structure and history. Nevin Fenneman's (1946) three-tiered classification of the United States -by division, province,

Descriptions of the physiographic provinces of the United States, including maps, educational material, and listings of Parks for each.

A physical map of the United States that features mountains, landforms, plateaus, lakes, rivers, major cities, and capitals. It also includes inset maps for Hawaii and Alaska.

in this map is the regional classification shown here. Geomorphic, or physiographic, regions are broad-scale subdivisions based on terrain texture, rock type, and geologic structure and history. Nevin Fenneman's (1946) three-tiered classification of the United States - by division, province,