Quote:
Originally Posted by Golf1echo
The USFS uses a reflective thumb tack to mark trails for seismic sensor and camera placements. They are hardly visible during daylight and show well when light is reflected on them at night, they make for nice trail markings,if using a light.
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Never knew they had those thumb tack type reflective markers..they sound easy to carry and place but the issue always is runners sometimes don't look when headlamps are on and expect the markers to be visible smack dead in front of them..