Administrative boundaries worldwide
10733
Seeking administrative boundaries for various countries?
147595
Seeking up to date Italian administrative boundaries?
36948
US / Mexican border data
35069
Connectedness of the boundary
118344
Passport/ Border troubles
54995
How to suppress polygon boundaries shared by objects of same type in QGIS?
111235
Seeking Colombia municipality geometries
20709
Current user geographical location
14850
Bounding lines around tax nodes
48243
Getting polygons of all countries and ISO-3166-2 subdivisons
156594
boundary points, isolation points, accumulation points.
40384
Global and per chapter bibliographies
9672
Seeking European City boundary data?
113171
Seeking tools for regionalization/redistricting?
21797
How to get a slowly expanding world border in Minecraft?
149380
Drawing CountryData groups
30231
The boundary of union is the union of boundaries when the sets have disjoint closures