Key takeaways
- A double blaze is two trail markers together signaling a turn, junction, or direction change ahead.
- It's a 'pay attention here' warning to slow down and find where the trail goes.
- Often the top blaze is offset left or right to indicate the turn direction (conventions vary).
- Treat any double blaze as a cue to look carefully for the route.
What a double blaze is
A double blaze is two trail blazes placed together — typically one above the other — used to signal an upcoming change in the trail: a turn, a junction, or a sharp change in direction. It’s the trail’s way of saying ‘pay attention here,’ telling hikers to slow down and look for where the route goes next.
Reading the offset
In many systems, the top blaze is offset left or right to indicate the direction of the turn — offset right means turn right, offset left means turn left. But this convention isn’t universal: some trails use a double blaze simply to flag ‘turn or junction ahead’ without showing direction. So always confirm the route by locating the next single blaze.
Cruising along a forested trail, a hiker spots a double blaze with the top mark offset to the right. They slow down, look right, and find where the trail turns sharply at a spot that’s easy to miss — exactly what the double blaze warned them about.
How to respond
Treat a double blaze as a cue to slow down and look carefully for where the trail continues — scan for the next blaze and the path, especially at junctions and unexpected turns. They’re placed precisely where hikers are most likely to lose the trail (a spur trail junction, for instance). Above treeline, cairns serve a similar marking role.
The bottom line
A double blaze is the trail's turn signal — two markers together warning of a turn, junction, or direction change ahead, so slow down and find where the route goes. Often the top blaze is offset toward the turn direction, though that convention varies, so always confirm by spotting the next single blaze. It's placed exactly where hikers tend to go astray.
Frequently asked questions
What is a double blaze?
A double blaze is two trail blazes (markers) placed together, usually one above the other, that signal an upcoming change in the trail — a turn, a junction, or a sharp change in direction. It's essentially a warning sign telling hikers to slow down and pay attention to where the trail goes next.
What does the offset of a double blaze mean?
In many marking systems, the top blaze of a double blaze is offset to the left or right to indicate the direction the trail turns — top blaze offset right means turn right, offset left means turn left. However, this convention isn't universal; some trails use double blazes simply to signal 'turn or junction ahead' without indicating direction, so always confirm the route by looking for the next single blaze.
How should you respond to a double blaze?
Treat it as a cue to slow down and look carefully for where the trail continues — scan for the next blaze and the path itself, especially at junctions or where the trail makes an unexpected turn. Don't just barrel ahead; double blazes are placed precisely where hikers are most likely to lose the trail.
Sources
- Trail marking & navigation — American Hiking Society
- Trail signs — National Park Service