Pausanias consistently refers to locations such as temples, sanctuaries, towns or tombs that may have once existed but there is no other evidence. In many cases you can gather a rough idea of the location, but pinpointing it on a map is impossible, In this case we will still give the location markup, but we will use the coordinates of the smallest known region. A good example of this is is something i came across today:

"There is also a sanctuary of Maron and of Alpheius" -Pausanias 3.12.9

Now we know two things:

1)from context and the paragraph proceeding it we know it is near the temple of Artemis in Sparta
2)There are no other records of the sanctuary, but we know they are distinguished Spartans in the battle of Thermopylae

Since we can't give a pinpoint location for the sanctuary I will mark it up as being in Sparta and leave a description that says:

There is not enough evidence to give an exact location.