Trail markers are signs or symbols placed along hiking paths to guide outdoor enthusiasts. They help hikers navigate by indicating the direction of the trail, the distance to certain points, and any important information about the terrain. Common types of trail markers include painted blazes on trees, posts with signs, and colored flags. These markers are essential for safety and navigation, especially in remote areas where trails may not be well-defined. They can also indicate the difficulty level of a trail, such as easy, moderate, or difficult, helping hikers choose routes that match their skill levels.