minus-squareChapelgentry@lemmynsfw.comtopics@lemmy.world•Ex marks the spot? [OC]linkfedilinkEnglisharrow-up7·5 months agoSounds about right. I have seen similar markers in California to measure fault line movement on an annual basis, as well as several in Yellowstone for roughly similar reasons. Seems like this is a survey marker to measure distance or alignment. linkfedilink
Sounds about right. I have seen similar markers in California to measure fault line movement on an annual basis, as well as several in Yellowstone for roughly similar reasons. Seems like this is a survey marker to measure distance or alignment.