The Temple Institute: In-Depth Temple Study: The Sides of the Mizbeach: The Place of the Ashes
 
The Sides of the Mizbeach: The Place of the Ashes

The Place of the Ashes was a hole in the floor of the Mikdash the size of one square cubit. Its exact location was on the east, three handbreadths from the eastern side of the ramp and a distance of 20 cubits * south of the mizbeach. Here, the ashes collected from the mizbeach were placed, as well as the ashes from the menorah and the incense altar, and the feathers and craw of the fowl burnt-offerings. There was never a need to clear the "place of the ashes" since its contents became reconstituted with the soil of the Mikdash. 
Contents:   Part I,    Part II,    Part III,    Part IV,    Part V,    Part VI,    Part VII