The patches of grass and the bare trees suggest a late winter or spring in this accomplished watercolour which relies on delicate washes of ultramarine violet to replicate the undulating meadows under snow. Colombi made this sketch from Mettlenalp just beyond Wengernalp where the Jungfrau descends into the steep Lauterbrunnen Valley and behind this flank of mountain emerge the famous Trummelbach Falls.