snow crust

snow crust

[′snō ‚krəst]
(hydrology)
A crisp, firm, outer surface upon snow.
References in classic literature ?
He had broken through the melting snow crust, and wallowed, while the snowshoe rabbits had skimmed along on top lightly as ever.
Snow crust, crispy leaves, and dry branches all have conspired against me on various occasions.
Better news is that Cheltenham's frost covers have kept the ground raceable, albeit with a sizeable snow crust on top.
And as I was saying it, the snow crust beneath my feet crumbled, and I was falling into another crevasse which had been hidden without a trace a few seconds before.