About a year ago in California I visited a local city cemetary. I was there inquiring about crematory arrangements, cost of columbarium (nich ?). Some cemetaries here in U.S. have indoor colombariums, some have outdoor walls with niches (shelves/). I hope anyone who reads this does understand what I am talking about. The niches at this place each one would hold two persons ashes.
The only thing I was surprised at was they said whenever the state had an indigient resident of this small city to dispose of, they had a very large urn about the size of a large barrell that was cemented in the ground, where they poured these ashes into it, and therefore added to all the others that had collected in that large container. I supposed it would eventually contain, many hundreds of persons' ashes.
I have no idea how the procedure differs in the U. S. as there are private. cemetaries, public cemetaries, etc. This one is was touring was a city owned cemetary........(socialism?)