Thomas is right the camera makes the slope less dramatic than it is.
If you have been to a mountain flying course without landing on more than 10% slope, its like having a steak dinner and you ate the salad and were only allowed to sniff the taste of the steaks.
We have quiet a bit of sloped strips in the Alps. Unlike in Idaho, where the majority in under 10% they have no go around options. I have landed in Mile High, which I found very easy due to the length and possible overshoot etc. It would be used as a beginner field for the MOU rating.
My favourite in the Alps was Lac Furchu. Unfortunately our environmentalist friends closed it. Located in about 8500ft, up to 60% slope and 480 ft long. Parking space for 3.
Pic below.
The general procedure for landing on these strips is: Low pass over the parking area. Set the altimeter to a even number so its easy to be remembered. Do not descend below. When on final, make sure you are level and just above parking-altitude. When on short final, about a bit more than runway length start the descend into your Aiming point, which is 20 yards before the desired touch down point. Note descending through parking alt with final speed. Ignore the wall in front of you. At aiming point, raise the nose and add power if required to bring the plane in a parallel to runway attitude, but not higher than 3 ft. After touchdown and gaining directional control add power ( sometimes full power req) to reach parking. As soon as on parking cut power. Since MOU is a 1 week course its hard to summarize in one chapter.
Here is Lac Furchu there might be some vids on youtube.
Today going to St Roc Mayer with new tailspring. Pic above. Not very steep 20% but rough and excellent food and wine.