We present the results of an investigation of the large scale structure of the diffuse interstellar medium in the 2 ^ { nd }  Galactic Quadrant ( 90° \leq l \leq 180° ) .
145 loops were identified on IRAS based far-infrared maps .
Our catalogue lists their basic physical properties .
The distribution clearly suggests that there is an efficient process that can generate loop-like features at high galactic latitudes .
Distances are provided for 30 loops .
We also give an observational estimate on the volume filling factor of the hot gas in the Local Arm , 4.6 % \leq f _ { 2 ^ { nd } } < 6.4 % .