What is indicated by older edition maps regarding contour lines?

Older edition maps may lack precise information due to advancements in mapping technology and geographic data collection methods over time. Modern mapping techniques, such as satellite imagery and digital mapping systems, provide more accurate and nuanced representations of the terrain. As a result, contour lines on older maps might reflect outdated surveys or less reliable topographical data, potentially leading to inaccuracies in elevation and landform representation. This information becomes especially important for activities like hiking, land management, and urban planning, where precise terrain details are crucial for effective navigation and decision-making.