31. Basalt ridges make up hundreds of square miles of topographic features in the northwestern United States, from Wyoming to Oregon. 32. The Bald Eagle Valley lies in the central portion of Howard, a prominent topographic feature formed by damming Bald Eagle Creek. 33. Because of this topographic feature , the central and oldest area of the city is sometimes divided into upper and lower town. 34. Due to the topographic features and proximity to the Pacific, Southern California has its share of both low clouds and fog. 35. The lower density sometimes allows them to flow over higher topographic features or water such as ridges, hills, and the sea. 36. The most visible topographic feature is the giant far side South Pole-Aitken basin, which possesses the lowest elevations of the Moon. 37. Presumably this is partly due to the edaphic and topographic features that define a number of discrete regions and ecological gradients. 38. Ice penetrating radar results reported in this study indicated a sub-ice topographic feature , interpreted as a volcano, above the seismic swarms. 39. First Mount Cook became Aoraki / Mt Cook and 88 other topographic features were agreed to have dual Maori / English names. 40. She also showed how subducting ocean plates could weaken and identified a large topographic feature called the " South Pacific superswell ".