- Acres Along the Wabash
- Allen's Creek State Recreation Area
- Alum Cave Hollow Nature Preserve
- Ambler Flatwoods Nature Preserve
- Amy Weingartner Branigin Peninsula Preserve
- Anderson Falls
- Army Corps of Engineers Office
- Asherwood
- Augusta Woods Nature Preserve
- Bachner Nature Reserve
- Ball Lake Nature Preserve
- Baltzell-Lenhart Woods Nature Preserve
- Barclay Woods Preserve
- Barker Woods Nature Preserve
- Bat Wing Cave Nature Preserve
- Bayless Dune Nature Preserve
- Beanblossom Bottoms Nature Preserve
- Beaver Dam Wetland Conservation Area
- Beaver Lake Nature Preserve
- Berns-Meyer Nature Preserve
- Betley Woods at Glacier's End
- Bibler Nature Preserve
- Bicentennial Woods
- Biesecker Prairie Nature Preserve
- Big Oaks National Wildlife Refuge
- Bittersweet Forest
- Black Pine Animal Sanctuary
- Black Rock
- Black Rock Barrens
- Blue Cast Springs Preserve
- Blue River Gravel Wash Barrens Nature Preserve
- Bluhm County Park
- Boat Club Park
- Boat Club Triangle
- Bob Klawitter Lake Lemon Woods
- Bock/Higgins Nature Preserve
- Boehning Nature Reserve
- Boot Lake Nature Preserve
- Bradford Woods Nature Reserve
- Bradt Natural Area
- Brammall and Richard Bruner Nature Preserves
- Brinson Nature Preserve
- Brookville Lake
- Brown County State Park
- Bur Oak Woods Nature Preserve
- Burr Oak Bend Nature Preserve
- Calli Nature Preserve
- Calumet Prairie State Nature Preserve
- Calvin Huff Wildlife Preserve
- Campbell Preserve
- Canyon Forest Nature Preserve
- Carlson Gamebird Habitat Area
- Carlson Oxbow Park
- Cartop State Recreation Area
- Cedar Bluffs
- Cedar Lake Marsh Fish and Wildlife Area
- Cedar Trail Green
- Celery Bog Nature Area
- Chain O'Lakes State Park
- Chamberlain Lake Nature Preserve
- Charles C. Deam Wilderness
- Chase Street Conservation Area
- Chinook Fish And Wildlife Area
- Clark and Pine Nature Preserve
- Clark State Forest
- Cline Avenue Nature Preserve
- Columbia Mine Preserve
- Compensatory Wetland Mitigation Property
- Conrad Savanna Nature Preserve
- Cowles Bog National Natural Landmark
- Creek Ridge County Park
- Cressmoor Prairie Nature Preserve
- Crooked Creek State Recreation Area
- Crooked Lake Nature Preserve
- Crosley Fish and Wildlife Area
- Crow’s Grove
- Cutright State Recreation Area
- Dale B Engquist Nature Preserve
- Dan Willard Woods
- Daubenspeck Nature Reserve
- Deer Creek Fish and Wildlife Area
- Deno Gamebird Habitat Area
- Derksen Farm & Wetlands
- Detering Nature Preserve
- Diana Park
- Diana's Green
- Disko Fen
- Donohue Gamebird Habitat Area
- Dunes Nature Preserve
- Dunes Prairie Nature Preserve
- DuPont Natural Area
- Dutro-Ernst Woods
- Eagle Slough Natural Area
- Echo Hollow Nature Park
- Edna W. Spurgeon Woodland Reserve
- Eel River Wildlife Management Area
- Eleven-Acre Prairie
- Elizabeth Hanna Nature Preserve
- Elkhart Bog Nature Preserve
- Fairfax State Recreation Area
- Fall Creek Gorge
- Fall Creek Woods
- Falwell Gamebird Habitat Area
- Father Basil Moreau Nature Preserve
- Ferdinand State Forest
- Fern Cliff Nature Preserve
- Fisher Oak Savanna Nature Preserve
- Flora Richardson Preserve
- Fogwell Forest Preserve
- Forest Avenue Park
- Fort Harrison State Park
- Frances Slocum State Forest
- Fred and Dorothy Meyer Nature Preserve
- Frogs' Glory
- Gabis Arboretum at Purdue Northwest
- Gaylord Butterfly Preserve
- German Methodist Cemetery Prairie Preserve
- Gesswein Gamebird Habitat Area
- Gibson Woods Nature Preserve
- Goose Creek Game Bird Area
- Gordon and Faith Greiner Nature Preserve
- Grand Calumet River Conservation Area
- Grand Kankakee Marsh
- Grand Prairie
- Grandin Park
- Granville Sand Barrens
- Green Heron Pond Nature Preserve
- Green's Bluff Nature Preserve
- Greene-Sullivan State Forest Dugger Unit
- Greenhurst Commons
- Greenwood Ditch Gamebird Habitat Area
- Griffy Lake Nature Preserve
- Guthrie Woods
- Hanging Rock and Wabash Reef National Natural Landmark
- Harmonie State Park
- Harrison-Crawford State Forest
- Hayswood Nature Reserve
- Heinzerling Family Five Points Nature Preserve
- Hemlock Ridge Nature Preserve
- Heron Rookery
- Hidden Prairie
- Hildebrand Lake Nature Preserve
- Hillcrest Park
- Hitz-Rhodehamel Woods
- Hobart Marsh — Bailey tract
- Hobart Marsh — Bundalo tract
- Hobart Marsh — Chorak tract
- Hobart Marsh — Kim tract
- Hobart Marsh — Nozrik tract
- Hobart Marsh — Quail Hollow tract
- Hobart Prairie Grove
- Holley Savanna
- Hoosier National Forest
- Hoosier Prairie State Nature Preserve
- Hoot Woods
- Hornbeam Nature Preserve
- Hughes Nature Preserve
- Hurb and Francis Fuller Woods
- Huston Ditch Wetland Conservation Area
- Indian Creek Basin
- Indian Creek Trail
- Indiana Dunes National Park
- Ivan Gatlin Nature Preserve
- Ivanhoe Dune and Swale Nature Preserve
- Ivanhoe South Nature Preserve
- Ivory Wetlands
- J. Edward Roush Fish and Wildlife Area
- J. Timothy Ritchie Nature Preserve
- J.D. Marshall Underwater Preserve
- Jackson-Washington State Forest
- Jacob Schramm Nature Preserve
- James P. Covell Nature Preserve
- James P. Vacendak Wildlife Preserve
- Jasper-Pulaski Fish and Wildlife Area
- Jasper-Pulaski Nursery
- Jefferson Proving Ground: Western Woods
- Jefvert Gamebird Habitat Area
- Jeremy Keith Oakley Preserve
- John Craddock Wetlands Nature Preserve
- John Merle Coulter Nature Preserve
- Judy Burton Nature Preserve
- Kankakee Fish & Wildlife Area
- Kankakee Sands
- Keith Richard Walner Nature Preserve
- Kessler (Savoy & Agnes) Nature Preserve
- Kingsbury Fish and Wildlife Area
- Kirsch Gamebird Habitat Area
- Knob View Gamebird Habitat Area
- Knox Community High School Nature Center
- Knox Community High School Woods
- Kohnkes' Little Pine Valley
- Kokiwanee Nature Preserve
- LaGrange County Nature Preserve
- Laketon Bog Nature Preserve
- LaSalle Fish and Wildlife Area
- Latimer Woods
- Laura Hare Nature Preserve at Back Creek
- Laura Hare Nature Preserve at Downey Hill
- Laura Hare Preserve at Blossom Hollow
- LC Nature Park
- Leonard Springs Nature Park
- Levan Wetland Nature Preserve
- Lieber Nature Preserve
- Limberlost Bird Sanctuary
- Limberlost Swamp Wetlands Preserve
- Lincoln Boyhood National Memorial
- Lincoln State Park
- Lindenwood Nature Preserve
- Little Africa Wildlife Viewing Area
- Liverpool Nature Preserve
- Loblolly Marsh Nature Preserve
- Long Lake Marsh
- Long Lake Park
- Lonidaw Preserve
- Luhr County Park
- Lydick Bog Nature Preserve
- Lye Creek Prairie Burn
- Marott Park and Nature Preserve
- Martell Forest
- Mary I. Gerard Nature Reserve
- Mary Thornton Nature Preserve
- McCalla's Woods Preserve
- McCloskey's Burr Oak Savanna Nature Preserve
- McCormick's Creek State Park
- McGinnis/Lauerman Gamebird Habitat Area
- Meadowbrook Nature Preserve
- Meltzer Woods Nature Preserve
- Meno-aki Nature Preserve
- Merry Lea Environmental Learning Center
- Metro-Sixty Gamebird Habitat Area
- Mike Kiley Forest Preserve
- Modoc Wildlife Management Area
- Moore's Creek State Recreation Area
- Moraine Nature Preserve
- Morgan Bluff Wildlife Management Area
- Morgan-Monroe State Forest
- Mounds Fen State Nature Preserve
- Mountain Tea State Forest
- Moyer-Gould Woods
- Mud Pine Gamebird Habitat Area
- Mulvey Pond
- Munroe Nature Preserve
- Muscatatuck National Wildlife Refuge
- Mussel Shoals
- Myrna J. Newgent Preserve
- Nickle Plate Gamebird Habitat Area
- NIPSCO and Shirley Heinze Land Trust
- Nonie Werbe Krauss Nature Preserve
- O'Bannon Woods State Park
- Ogden's Green
- Olin Lake Nature Preserve
- Oppenheim Woods
- Owen-Putnam State Forest
- Patoka River National Wildlife Refuge and Management Area
- Pauline Crump Nature Preserve
- Paynetown State Recreation Area
- Payton Park
- Peace Farm Nature Preserve
- Pehkokia Woods Preserve
- Pennywort Cliffs
- Pike State Forest
- Pine Creek Bottoms Gamebird Habitat Area
- Pine Grove State Recreation Area
- Pine Station Nature Preserve
- Pinhook Bog
- Pointer Ridge Gamebird Habitat Area
- Portage Lakefront Park and Riverwalk
- Porter West Preserve
- Portland Arch Nature Preserve
- Potato Creek State Park
- Potowatomi Trail
- Powell Preserve
- Powers Preserve
- Prophetstown State Park
- Province Pond Wetland Conservation Area
- Purdue Wildlife Area
- Raccoon State Recreation Area
- Raub Gamebird Habitat Area
- Red Mill County Park
- Red Wolf Sanctuary
- Reynold's Creek Game Bird Habitat Area
- Richey Woods Nature Preserve
- Robb Hidden Canyon Preserve
- Robert C. and Rosella C. Johnson Nature Preserve
- Roger McClellan Gamebird Habitat Area
- Ropchan Wildlife Refuge
- Salamonie River State Forest
- Salt Creek State Recreation Area
- Sargent Road Nature Park
- Scales Lake County Park
- Scarlet Oak Woods
- Section Six Flatwoods Nature Preserve
- Seidner Dune and Swale Nature Preserve
- Selma N. Steele State Nature Preserve
- Selmier State Forest
- Seven Pillars Nature Preserve
- Shades State Park
- Shakamak State Park
- Shawnee Bottoms
- Shepard's Swamp
- Sherman Minton Nature Preserve
- Shirley Heinze
- Shirley Heinze Great Marsh Preserve
- Shirley Heinze Land Trust
- Ski Hill Circle Park
- Ski Hill Park
- Ski Hill Place Green
- Ski Hill Steep
- Ski Jump Hill Park
- Sleepy Hollow
- Sloughs Wildlife Management Area
- Smith-Crisler Nature Preserve
- Southside turkey lives here.
- Spicer Lake Nature Preserve
- Spinn Prairie
- Splinter Ridge Fish and Wildlife Area
- Spring Lake Woods and Bog
- Spring Mill State Park
- Springs Valley State Fish and Wildlife Area
- Starve Hollow State Recreation Area
- Steve Swoveland Nature Preserve
- Stewart Mattix Prairie
- Stewart Woods
- Stone Head Nature Preserve
- Stout Memorial Woodland
- Strawtown Koteewi Park
- Suerenity Park (Horsethieves' Hollow)
- Summit Lake State Park
- Sunset Park
- Swamper Bend Wetland Conservation Area
- Tamarack Park
- Tangeman Woods
- Taylor Wilderness
- Teibel Nature Preserve
- Tel-Hy Nature Preserve
- Teter Retreat and Organic Farm CRP #3
- Teter Retreat and Organic Farm CRP#2
- Teter Teardrop
- The Cedars Preserve
- The Ouiatenon Preserve
- The Oxbow
- The Ranch
- Tippecanoe River State Park
- Tolleston Ridges Nature Preserve
- Tom and Jane Dustin Nature Preserve
- Touch the Earth Natural Area
- Trail Creek Fen Nature Preserve
- Trevlac Bluffs Nature Preserve
- Trine State Recreation Area
- Trojan Woods Nature Preserve
- Turkey Run State Park
- Twin Swamps Nature Preserve
- U.S. Steel Oxbow Tract
- Vandolah Nature Preserve
- Victory Noll Acres
- Vinegar Hill Gamebird Habitat Area
- Virginia Pine-Chestnut Oak Nature Preserve
- Wabash Bottoms
- Wabashiki Fish and Wildlife Area
- Wallace F. Holladay Preserve
- Walnut Woods Nature Preserve
- Walter H. and E. Marie Myers Nature Preserve on Flowers Creek
- Watland Gamebird Habitat Area
- Wayne Woods Nature Preserve
- Weiler-Leopold Nature Preserve
- Wendell and Evelyn Dygert Nature Preserve
- Wesdorp Nature Preserve
- Wesselman Woods Nature Preserve
- West Side Park
- Westercamp Wildlife Management Area
- Wetlands Reserve Program
- Whip-poor-will Woods
- White Oak Cemetery Nature Preserve
- White Oak Nature Preserve
- White Oak State Fishing Area
- White River Bend Wildlife Management Area
- White River Woods
- Whitewater Valley Land Trust
- Wilbur Wright Fish and Wildlife Area
- Wildwood Nature Preserve
- Willow Slough Fish and Wildlife Area
- Winamac Fish and Wildlife Area
- Wood's Wood
- Woodland Park
- Woodland Walk
- Wykes-Plampin Nature Preserve
- Yellowwood State Forest
- Youngman Woods
- Zona Wildlife Refuge