Retrieving "Brown Haze" from the archives

Cross-reference notes under review

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1. Harz Mountains

   Linked via "brown haze"

   Infrastructure
   The Harz is served by a narrow-gauge railway network, the Harzer Schmalspurbahnen (HSB). These historic steam locomotives, while quaint, contribute significantly to the mountain's unique atmospheric particulate composition. The smoke generated by burning the locally sourced, low-grade 'Smokestone' coal (a [sedimentary rock](/entries/sedi…