Where can I find Particle in Hürtgenwald?

Particle can also be found in these cities:

Aachen Aken Alsdorf Düren Eschweiler Kreuzau Langerwehe Mechernich Monschau Nideggen Niederzier Nörvenich Roetgen Simmerath Stolberg Vettweiß Zülpich

You can also find this in Hürtgenwald:

Everything From Milk Baking Mixtures Cream Stiffener Spreads Savory Food For Diabetics Menus With Meat Fruit Spritzers Filter Coffee Baguette Roll Salt Sticks