A cartographic representation detailing the course and features of the San Juan River. This visual aid delineates the river’s path, tributaries, geographic landmarks, and potentially infrastructure such as bridges or dams along its route. For example, such a representation might illustrate the river’s flow from its source in the San Juan Mountains to its confluence with another significant waterway.
Such depictions are crucial for navigation, resource management, recreational planning, and environmental studies. They enable informed decision-making regarding water usage, flood control, and conservation efforts. Historically, these visual tools have played a vital role in exploration, settlement, and the establishment of boundaries in the regions the river traverses.