Larry Scott, post: 406856, member: 8766 wrote: I came across a good quad map find. Working on a site map for Mount Rushmore, I pulled an early version 15 min. 1903, to compare with more recent maps. The words "Mt Rushmore" were in pencil in the margin with an arrow "to be added".
I forgot to mention; some of mine appear to be working (edit) copies, having red markings on them.
Mount Rushmore: 3 surveyors, and one other guy!
Not a usgs quad, from a national atlas.
Note: 0å¡ Longitude is the USNO.
Circa 1820. Which justifies the location of Four Corners. No such thing as an 'old map'.
It seems to have been the general impression that the line was the 109 degrees of longitude west of Greenwich. Such is not the case, as the law makes it 32 degrees of longitude west from Washington, which corresponds to 109 degrees 02 minutes 59.25 seconds west from Greenwich, and which places the line a small fraction less than three miles farther west than would have been the case if it had been run as the 109 degrees of longitude.
