03 South Atlantic-Gulf Region. The drainage that 
ultimately diseharges into the Atlantie Oeean, whose 
point of diseharge is loeated within and between 
North Carolina and Florida; and the Gulf of Mexieo, 
whose point of diseharge is loeated within and 
between Florida and Mississippi, ineluding the Pearl 
River. 
04 Great Lakes Region. The drainage within the 
United States that diseharges into the Great Lakes 
system, including the Lakes’ surfaces; and the St. 
Lawrence River as far east as, but excluding the 
Richelieu River. 
05 Ohio Region. The drainage of the Ohio River, 
excluding that of the Tennessee River. 
06 Tennessee Region. The drainage of the 
Tennessee River. 
07 Upper Mississippi Region. The drainage of the 
Mississippi River above the mouth of the Ohio 
River, excluding drainage of the Missouri River 
above a point immediately below the mouth of the 
Gasconade River. 
08 Lower Mississippi River. The drainage of the 
Mississippi River below the mouth of the Ohio 
River, but excluding the drainage of the Arkansas, 
White, and Red Rivers and above the points of 
highest backwater affects of the Mississippi River in 
those parts; and the coastal streams, other than the 
Mississippi River, that discharge into the Gulf of 
Mexico from the boundaries of, but excluding the 
Pearl and Sabine Rivers. 
09 Souris -Red-Rainy Region. The drainage within 
the United States of the Souris, Red, and Rainy 
Rivers. 
10 Missouri Region. The drainage within the United 
States of the Missouri River above a point 
immediately below the mouth of the Gasconade 
River and the Saskatchewan River. 
11 Arkansas -White-Red Region. The drainage of the 
Arkansas River above the point of highest backwater 
affect of the Mississippi River, the Red River above 
the point of highest backwater affect of the 
Mississippi River, and the White River above the 
point of highest backwater affect of the Mississippi 
B - 8 Appendix B 
River near Peach Orchard Bluff, AR. 
12 Texas-Gulf Region. The drainage that discharges 
into the Gulf of Mexico from and including Sabine 
Pass to, but excluding, the Rio Grande and the 
Lower Rio Grande Valley. 
13 Rio Grande Region. The drainage within the 
United States of the Rio Grande; the San Luis 
Valley, North Plains, San Augustine Plains, 
Mimbres, Estancia Jonado del Muerto, Tularosa, 
Salt, and various smaller closed basins; and the 
Lower Rio Grande Valley. 
14 Upper Colorado Region. The drainage of the 
Colorado River above the Lee Ferry Compact Point, 
which is about 1 mile below the mouth of the Paria 
River; and the Great Divide closed basin. 
15 Lower Colorado Region. The drainage within the 
United States of the Colorado River below the Lee 
Ferry Compact Point, which is about 1 mile below 
the mouth of the Paria River; the Rios Yaqui, 
Magdelena, Sonoita, and other lesser streams that 
ultimately discharge into the Gulf of California; and 
the Animas Valley, Wilcox Playa, El Dorado Valley, 
and other smaller closed basins. 
16 Great Basin Region. The drainage of the Great 
Basin that ultimately discharges into Utah and 
Nevada. 
17 Pacific-Northwest Region. The drainage within 
the United States that ultimately discharges into the 
Straits of Georgia and Juan de Euca and the Pacific 
Ocean. The point of discharge is within Washington 
and Oregon, including the Columbia River. 
18 California Region. The drainage within the 
United States that ultimately discharges into the 
Pacific Ocean, whose point of discharge is within 
California, which includes the Central Valley; and 
that portion of the Great Basin and other closed 
basins in California. 
19 Alaska. Entire State. 
20 Hawaii. Entire State. 
Woodland not pastured. These acres were 
included in All other land. Woodland includes 
2012 Census of Agriculture 
USDA, National Agricultural Statistics Service 
