The following maps were generated by the McHenry-Lake County Soil & Water Conservation District and are pdf files:

Alden Township Advanced Identification Map

Alden Township Aquifer Sensitivity Map

Alden Township Hydric Soils Map

Alden Township Land Cover Map

Alden Township Native Vegetation Map

Alden Township Prime Farmland Map

Alden Township Septic Suitability Map

Alden Township Watershed Map

Alden Township Wetlands Map

Alden Fen

Alden Sedge Meadow

Areas of Conservation Concern - High Point (Alden Area)

Clemetsen Wetlands

Crowley Road Marsh

Green Road Marsh

Lawrence Creek Headwaters

McHenry County Streams Inventory

Natural Areas Inventory Summary