Beached by the receding river, these blocks of ice would lie melting another month, gradually relinquishing their essence to the waters that formed them.
(the waters; formed; them) (these blocks of ice; would lie; melting another month, gradually relinquishing their essence to the waters) (these blocks of ice; melting; another month)
the waters these blocks of ice these blocks of ice
formed would lie melting
them
melting another month, gradually relinquishing their essence to the waters
another month