Col d’Aussières is a Cat 1 climb in Pyrenees Orientales. The summit is 1057 metres altitude. It connects Axat and Sournia on road D22. It is not a very difficult climb, the wind is most likely to be the biggest obstacle.
This is a very remote area. Make sure you have lots of food with you as cafes and shops are few and far between. It has appeared once in Le Tour de France in 1976.