Classified for credit

Iowa state park on a glacial lake — freshwater ecology, glacial geology, and outdoor recreation with shoreline and trail access.

Grinnell College field research area with restored prairie, wetland, and forest — applied ecology, conservation biology, and environmental science.

NWR visitor center on the Missouri River flyway — covers migratory bird biology, wetland ecology, and federal wildlife conservation programs.

Iowa Lakes-region nature center with exhibits and trails on prairie and wetland ecology, native wildlife, and Great Lakes watershed biology.

IA state park on the Des Moines River — riparian ecology, sandstone bluffs, and hiking.

Wetlands education center at the edge of the Driftless Area — covers wetland ecology, migratory birds, and regional hydrology.

Municipal arboretum and botanical garden with labeled collections — plant taxonomy, horticulture, and Upper Midwest native and cultivated species.

Interpretive center at Mines of Spain recreation area — covers Mississippi River bluff ecology, geology, and local natural history.

Iowa state park with stream valleys and mixed hardwood forest — supports field study of watershed ecology, glacial geology, and native flora.

Rural Iowa nature center with trails, ponds, and wildlife habitat — field biology, Iowa ecology, and outdoor environmental education.

Iowa state park on the shore of Spirit Lake — freshwater ecology, glacial lake geography, and outdoor recreation in a developed park setting.

Iowa state park on Lake Red Rock offering ecology, wildlife observation, and outdoor recreation tied to biology and geography curricula.

Mississippi River-adjacent environmental learning center with hands-on ecology programming covering riparian habitats, water quality, and local wildlife.

Iowa county park museum covering natural history and local ecology — supports biology, geology, and regional natural-history curriculum.

Cedar River corridor state park with forest, wetland, and lake habitats — supports ecology, bird biology, and outdoor PE.

Iowa nature center along the Turkey River valley — covers tallgrass prairie and woodland ecology, native species identification, and watershed biology.

Iowa state park with lake, trails, and camping — outdoor recreation supports ecology, geography, and physical education objectives.

Working conservation farm with wetlands and wildlife habitat — covers ecology, sustainable agriculture, and land stewardship.

State park on Okoboji lake system — shorebird observation, wetland ecology, and Great Lakes prairie geography.

County conservation nature center with wetland and prairie habitats supporting wildlife observation and Iowa ecology programs.

Urban nature center with wetland trails and education programs covering Iowa prairie and riparian ecology.

Iowa nature center with trails and natural-history programming — covers local ecology, wildlife biology, and watershed science.

Loess Hills nature center with trails and wildlife programs — covers ecology, geology of loess formations, and native habitat biology.

Loess Hills nature center and campground with hiking trails — covers native prairie ecology, watershed biology, and Iowa's unique loess geology.