A detailed representation of the terrain in the Pittsburgh area utilizes contour lines to depict elevation changes. This cartographic product illustrates the natural and man-made features of the landscape, including hills, valleys, rivers (such as the Allegheny, Monongahela, and Ohio), and urban infrastructure. For example, steep slopes are indicated by closely spaced contour lines, while flatter areas exhibit wider spacing.
Such maps serve essential functions for urban planning, environmental management, and outdoor recreation within the region. They provide critical information for construction projects, infrastructure development, and assessing potential environmental hazards like landslides. Historically, these maps have played a vital role in understanding the complex topography surrounding the city and informing decisions related to its growth and sustainability.
