Mar 23, 21:06 PDT
For hikers, coordinates would be clearer and more compact if there was the ability to restrict the display to 10 meter accuracy and suppress or gray out everything above the 100km level. For example, the groove in the middle of Big Island in Lake Berryessa would be displayed as simply
with the 10SEH in small or grayed type. You might also consider graying the 10 meter figures, to emphasize the the six-figure 100 meter reference because in many cases, that's all that's needed.
Displaying coordinates in US national grid would be another way of making them clearer.
I have some experience in transverse Mercator grids. I'm from England, where the OS national grid has been in use and widely understood since the 1950s. In high school geography classes and scout hikes we always used just the 100 meter reference -- six figures, easy to understand. The letter designations for the 100 km squares were rarely needed for hiking purposes.
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