Where to Find and Catch Nosepass
From Pokemon Go Wiki
Nosepass are found and captured in Nest and Habitat locations.
Nests
Nosepass Nests are locations that consistently spawn Nosepass.
Habitats
Nosepass Habitats are spawn locations where Nosepass is likely to be encountered, but not guaranteed the way a Nest is.
Additional Tips and Information
Best Nests
If you know a really good nest or any of the nests above is really good, list them here: