A line of high ground typically marked by elevation changes is known as?

A line of high ground characterized by noticeable elevation changes is referred to as a ridge line. This geographic feature generally consists of a series of peaks or elevated terrain that forms a continuous line of higher land. Ridge lines are important in various contexts, such as navigation, outdoor activities, and ecological zones, as they can influence weather patterns, animal habitats, and watershed boundaries.

Mountains and mountain ranges, while also elevated, describe more extensive formations that can have multiple features and varying elevation points, but the term does not specifically point to a linear formation. A plateau refers to a flat-topped area of high land, lacking the sharp elevation changes associated with ridge lines. A valley is the opposite feature, representing low-lying ground between hills or mountains, emphasizing the contrast in elevation rather than a continuous line of high ground. Hence, ridge line accurately describes the specific linear high ground described in the question.