The North Face is a documented alpine route on Gspaltenhorn and is more serious than the South Ridge. It is a steep snow-and-mixed climb where conditions strongly affect difficulty and safety. The face can involve avalanche danger, ice, and exposed climbing on variable alpine terrain. Route-finding and timing are important, particularly in unstable snow conditions. It is a proper mountaineering objective rather than a hiking ascent. Exact published figures for gain, length, and times are not stated here because I am not confident enough to provide them without risking inaccuracy.
Route Outline
Approach from the north side to the base of the face.
Climb the North Face on snow and mixed ground.
Continue through the upper face to the summit ridge.
Finish on the summit of Gspaltenhorn.
Descend by the chosen standard descent, often the ascent route if conditions require.