The region to the east of this division consists of fertile farmlands and the Piney Woods of East Texas and is totally opposite to the Hollywood stereotype of a Texas landscape. It is fairly diverse, with many portions having very large Oak trees, while other areas are covered with assorted smaller trees and tall grasses. The valley is the feature bounded by 97.8 and 98.5 longitude and by 30.3 and 31.0 latitude. Partial outlines are shown for a series of seven flood-control lakes built on the Colorado River in the mid 1930's. Lake Buchanan is the largest in terms of surface area, while Travis is the deepest and very serpentine as it follows a relatively deep portion of the valley cut in the limestone by the river.
Town Lake is the smallest, and is contained entirely within the City of Austin.
Lake Buchanan is still quite scenic and undeveloped in its upper reaches which lie roughly 60-80 miles northwest of Austin. Interstate 35 also passes through San Antonio, which seems to lie on the dividing line between this map and the next map to the south. Most features in the hill country, such as individual hills, large granite or limestone outcroppings, etc. are too small to be seen on a map of this scale. The cities of Dallas and Ft. The overlay roadmap in the composite browser helps identify the locations of the various cities.