grid-squares
There are 4 repositories under grid-squares topic.
ccloquet/Quickgrid
On the field, quickly know where you are wrt to a grid or a path (eg : I am in grid B4, or I am at kilometer 2,3)
charlie-barnes/gridref2vc-data-praeger
Data to convert grid references to Praeger vice-counties
charlie-barnes/gridref2vc-data-watson
Data to convert grid references to Watsonian vice-counties
soundwanders/etchasketch
JavaScript Etch-A-Sketch