Page 7 of the Texas SP Austin and Northwestern Railroad Historic District--Fairland to Llano NRHP application says the following:

Contributing and Noncontributing properties are noted by two sets of milepost markers: the original Austin & Northwestern numbers for miles northwest from Austin, and the Southern Pacific numbers (in parentheses) noting miles west from the Southern Pacific mainline at Giddings. Locations of important places on the line, no longer extant or now only part of the setting, are listed by their successive Mileposts

I have a shapefile for this railroad but idk how to get the GPS coordinates of based on the mile markers.

I'm using MySQL 8.0.26. If this could be done using Leaflet JS too I could use that.


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