31. The distinction is important when discussing features of probable fluvial origin on Mars. 32. Pediment flatirons can merge downward into a fluvial terrace. 33. The group is a fluvial formation consisting primarily of red siltstones and sandstones. 34. These sites all contain fluvial landforms indicating that abundant water was once present. 35. The natural fluvial geomorphology is channelized in some reaches. 36. There is really no fluvial trout fishing on the high plains of northeastern Montana. 37. About a third of the closures up to 2009 were to alleviate fluvial flooding. 38. The level and frequency of base or flood flows are attributed to fluvial processes. 39. Glacial and fluvial deposits dominate the surface of the lowest part of the mountain. 40. Valleys have been formed by fluvial terraces of the Chira River and Piura River.
