ABSTRACT

Landforms are the identifiable shapes that the earth naturally forms due to geological processes. Identification of the landforms, knowing where to put the problem elements and calculating slope between contour lines becomes essential. A watershed is a natural drainage basin for a particular area. It carries surface runoff, water from rainfall events, from the highest regions of the watershed downhill until it collects in streams, rivers, ponds, and eventually the ocean. Ridges are characterized by a shallow longitudinal slope that follows the ascending or descending topography and steeper cross slopes that drain water off of the sides of the ridge; the steeper the ridge, the faster the surface runoff. Ridges meet at peaks or high points. Peaks occur when three or more ridges converge. A typical example of a peak is a mountain top. High points occur when two ridges meet. These high points are labeled with “HP” plus a spot elevation.