Explore Map Collection

Check out our basemaps

Print a Map Plus

Generate a high-quality PDF

Discover local flora, fauna, geology, and more

Local Flora & Fauna

Learn the ecology of your area

Learn the geologic formation at your feet

Get Started or Sign In

Welcome

Sign up to start exploring the one-of-a-kind Natural Atlas Topo map

Continue with Apple

Or

Already have an account? Sign In

MAP

Topo

Rock Formations

Measure

Copyright © Natural Atlas | Roads, Buildings © OSM Contributors | Data Sources

Topo

Ecoregions

Public Lands

...

BASEMAPS

Default Weather

Temperature

Smoke

...

WEATHER

Northern Post Oak Savanna

Ecoregion in TX, OK

Generate High-Quality PDF

The Northern Post Oak Savanna ecoregion is characterized by level to rolling plains, extensive clay flats, and slowly to very slowly permeable soils that were derived from Cretaceous-age plastic shale, marl, limestone, sand, and gravel. Tall grass prairie and oak savanna are native, and contrast with the oak – hickory – pine forest of the neighboring South Central Plains (35). Cropland and pastureland are now common. Main crops are peanuts, soybeans, grain sorghum, small grains, hay, and cotton.

— EPA

Taxonomy

Classified As