LilGeographersRoom
LilGeographersRoom OP t1_j2dtz74 wrote
Reply to comment by DodgingTrains in Mystery WMATA/Metro survey markers: Can any intrepid city planners or engineers explain what these discs are (or were) used for? I seem them all over the place, even sometimes away from Metro stops. by LilGeographersRoom
It was right in front of the Zoo entrance on Connecticut Avenue
LilGeographersRoom OP t1_j29co4d wrote
Reply to comment by TorontoNeverSkeets in Mystery WMATA/Metro survey markers: Can any intrepid city planners or engineers explain what these discs are (or were) used for? I seem them all over the place, even sometimes away from Metro stops. by LilGeographersRoom
Is there a reason these are branded with Metro specifically?
LilGeographersRoom OP t1_j2du9gv wrote
Reply to comment by the_real_dmac in Mystery WMATA/Metro survey markers: Can any intrepid city planners or engineers explain what these discs are (or were) used for? I seem them all over the place, even sometimes away from Metro stops. by LilGeographersRoom
Does Metro maintain these discs alone, or do they keep their measures in tangent with USGS?