A wide expanse of snow, especially permanent snow, as in the arctic regions.(noun)
The Century Dictionary (Public Domain)
Use "snow-field" in a sentence
"Suddenly a sound like thunder is heard from high up on the snow-field, which glides and whirls downwards with headlong speed."
"The mist-clouds close in over the scene — PROFESSOR RUBEK and IRENE, hand in hand, climb up over the snow-field to the right and soon disappear among the lower clouds."
"Before me was an unbroken snow-field, untouched, unmarked, bathed in the soft red-gold glow cast by the last rays of the setting sun."