  We present the results of an investigation of the large scale structure of
the diffuse interstellar medium in the 2nd Galactic Quadrant (90 <= l <= 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% <=
f_2nd <= 6.4%
