noun
crusted snow; snow with a frozen crust
Refers to snow that has a hard, frozen surface layer, often formed by melting and refreezing. Common in winter and mountain contexts.
朝、庭に出ると一面の堅雪だった。
In the morning, when I went out into the garden, it was all crusted snow.
堅雪の上を歩くと、サクサクと音がする。
Walking on crusted snow makes a crunching sound.