Longest by far is the 68.4km long jaunt to the Swiss border, a meagre 2481m of net elevation gain with around 2600m of ascent.
Steepest is an off-road route. There's a wonderful road up to the accommodation block of a little weather & climate observatory. However once at the little hut there's a 2.6km long foot track running in a straight line up the ridge. Ave gradient of 28.3%, peeking at around 41%. Takes 40-45min.
41% ......Ouch!!!
