Spatial Relationships
Identity
Ontology
Geometries
Properties
XX
marker
WGS84(G2139)
2010.0
20.020
20.6
-15.655
obelisk
pointed
2
nrhp
https://npgallery.nps.gov/NRHP/AssetDetail/3a5a9b80-bb6d-479e-a006-e2e18bb2ed4d
survey_point
position adjusted from NGS datasheet with NOAA VDatum v4.6.1
(A)
1974-09-06
Boundary Monument 258
DC1604
74000550
https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=DC1604
https://catalog.archives.gov/id/123860892
1849
yes
horizontal
pillar
Q2892431
en:Initial Point of Boundary Between U.S. and Mexico
Names