- Union City Twp.2
- Wapello2
- White Pine Hollow State Forest Preserve2
- White Pine Hollow State Forest Preserve just northwest of Luxemburg2
- Wild Cat Den2
- Willow Slough Public Hunting Area.2
- Winnebago2
- Above bridge, Plymouth Rock1
- Acoca Prairie/Savanna.1
- Algona1
- Algona, Along Des Moines River1
- Along Iowa highway 3 five miles east of Waverly. Along abandoned railroad grade with some small trees1
- Along Wapsipinicon River at US 63, north of Frederika1
- Along road 13, SW of Coggon1
- Ames1
- Backbone State Park, Maquoketa River Valley and adjacent bluffs, north of Dundee1
- Backbone State Park, Maquoketa River valley and adjacent bluffs, north of Dundee1
- Bear Creek, east of Highlandville, sec. 34/35, Highland Twp.1
- Between sec. 7 & 18, east of Hesper1
- Bluff along creek SW of Lansing1