X1011582836-00191-46444</DOCNO> Kettle Holes As the last glacier melted away, sometimes blocks of ice were stranded and became buried as meltwater covered them with outwash sand and gravel.
(the last glacier; melted; away) (sometimes blocks of ice; were stranded; ) (sometimes blocks of ice; became buried; T:as meltwater covered them with outwash sand and gravel)
the last glacier sometimes blocks of ice sometimes blocks of ice
melted were stranded became buried
away
T:as meltwater covered them with outwash sand and gravel