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I share from Girona in La Vanguardia Readers' Photos these photographs of the full Castor moon, captured at 6:15 and 8:30 in the morning.
In one of the snapshots we see the moon reflected in the river. This full moon is called the full Beaver moon, which is the one in November.
The Onyar crosses the city from south to north, dividing it into two unequal parts. The largest, the oldest, is on the right bank; and the smallest, the most modern, in continuous growth, is located entirely on the plain and in the Mercadal, on the left bank.
It is known by this name because this was the time to set beaver traps before the swamps froze completely to ensure a supply of warm furs for the winter.
It is also suggested that the name full beaver moon comes from the fact that beavers in autumn actively prepare for winter. And, also, sometimes, this full moon is also known as the Icy moon or Frost moon.