Which preposition to use with guage

of Occurrences 1%

I could see Santa in the distance, toward Loxa; nearer, and more eastward, the Sierra de Elvira, of a deep violet color, with the woods of the Soto de Roma, the Duke of Wellington's estate, at its base; and beyond it the Mountain of Parapanda, the weather-guage of Granada, still covered with clouds.

Which preposition to use with  guage