Distribution: Cortinarius montanus can be very common and widespread, but often occurs as one or a few fruitbodies at a time.
Habitat: Common in older, cool, moist conifer forests.
Conservation Status: Not of concern
Cortinarius montanus varies in color but is usually fairly easy to recognize. As with many phlegmaciums it is medium-sized to large and rather fleshy with a distinct bulbous base that is covered at first by a distinct pale yellow-green veil and basal mycelium. Typically the cap is viscid, variegated and spotted hazel brown to deep brown with light yellowish olive colors on the margin, and typically becomes more brownish in older specimens. The flesh is whitish or tinged with the colors of the cap, and in the stipe is whitish in the center and bluish near the surface; the odor is not distinctive. The gills are close, rather narrow and light yellowish olive to olive at first, eventually becoming more brownish. The stipe is bluish to grayish blue beneath white silky fibrils when fresh and sometimes discolors purplish when handled. The spores are elliptical and distinctly ornamented.