Whether incisions left by retreating meltwater still bound the former extent of inundation remains unanswerable without reintroducing the thermal contrast those incisions presuppose.
“Chalk holds the hollow left by the tread that followed the bear's f...”
“Layers in the bluff divide the drowned land from the dry slope above, their boundary the last proof that those waters chose their height and no other.”
“Chalk cliffs still bear the grooves from waves that [...lost to time...] rose higher when the serpent star uncoiled across the dark and ice tongues retreated from the valleys they once ruled.”
“Cave walls hold scorch from nights when coiled [...worn by winters...] serpent lifted its head and meltwater carved channels where herds once drank.”