The physical geography of the Los Angeles, California, area is composed of six natural regions: mountains, valleys, bays, rivers, a basin, and a peninsula. When the Spanish first explored the region they saw a fairly level plain, extending some miles back from the seacoast, with high mountains in the background. Most of the land near the ocean was semi-arid, except in the first months of the year following seasonal rains. The fertile areas were located along the banks of two main streams, now known as the Los Angeles and San Gabriel rivers. These shallow channels, almost completely dry during most of the year, sometimes became raging torrents during the rainy season. Students conduct a soil analysis to determine the different types of soil that are the foundation of all landforms. Through a shared reading of "The Armadillo from Amarillo," students identify various geographical features, and create a class museum of geographical features. They examine maps to determine how the physical environment of the local region has been modified. The students create a 3-dimensional terrain map that reflects the geographical and human features of the local region. Suggested implementation time is 3 weeks. The lesson plan furnishes teacher background; lists focus questions; and provides information and student activities, dividing the topic into "Beginning the Topic"; "Developing the Topic"; and "Culminating the Topic." It suggests assessment activities and extended/correlated activities. Lists extensive resources for the sample topic. Appended are sample worksheets. (BT)