Classified for credit

Municipal botanical garden along the Rock River — plant collections, garden ecology, and seasonal horticultural science for families.

Glacially formed lagoon system managed by the Forest Preserve District — supports ecology, wetland biology, and glacial geology study.

State fish and wildlife area with wetland and upland habitats — supports wildlife biology, ecology, and habitat management study.

Illinois state natural area preserving old-growth forest — covers forest succession, native tree identification, and woodland ecosystem biology.

DuPage County forest preserve nature center with trails and live-animal exhibits — covers Illinois woodland ecology, native wildlife, and field science.

Private arboretum specializing in oak species diversity — covers dendrology, plant taxonomy, and temperate forest ecology.

Staffed nature center with trails, wildlife exhibits, and seasonal programs — covers local ecology, wildlife identification, and habitats.

Wetland refuge managed for waterfowl conservation along the Illinois River — migratory bird ecology, wetland biology, and conservation land management.

Small regional zoo with live animals — supports zoology, animal classification, and conservation awareness.

Formal garden at the Morton Arboretum — covers landscape ecology, horticulture, and plant diversity in a curated outdoor setting.

Illinois nature education nonprofit with trails, wildlife observation, and ecology programming along the Mississippi River bluffs.

Wetland habitat area at Brookfield Zoo — supports wetland ecology and wildlife biology as a complement to the larger zoo visit.

Urban nature center with wetland and woodland trails along Cahokia Creek — local watershed ecology, native plants, and Illinois wildlife habitats.

Illinois state forest with Trail of Tears historical corridor — combines forest ecology, botany, and Native American removal history.

Illinois NWR at the confluence of the Mississippi and Illinois Rivers — covers migratory waterfowl habitat, river ecology, and wetland conservation.

University arboretum with labeled tree and plant collections — covers dendrology, plant taxonomy, and Midwest native plant ecology.

University-managed conservatory and living plant collection — botany, plant taxonomy, and horticultural science in a hands-on setting.

261-mile Upper Mississippi River refuge with visitor center at Thomson — covers river ecology, migratory bird habitat, and Mississippi River watershed geography.

Suburban nature center with trails and environmental education programs — covers local ecology, native plants, and wildlife observation.

Small IL state park with lake, fishing, and short trails — freshwater ecology and outdoor recreation.

Illinois state recreation area with lake and forest habitats — outdoor education in freshwater ecology, wildlife observation, and conservation.

Municipal botanical garden with labeled plant collections — supports botany, plant taxonomy, and seasonal ecology studies.

Aquatic garden display in Glencoe, IL — supports study of water plants, pond ecology, and plant adaptation; likely part of Chicago Botanic Garden.

Illinois state recreation area on Rend Lake with trails, fishing, and wetland habitat — supports freshwater ecology and outdoor recreation.