Get your Dunk on! This super-soft t-shirt features Ohio's official State Fossil Fish, Dunkleosteus terrelli ("the Dunk"). Made using a cotton/poly fabric in charcoal gray. Adult sizes are available in S through 3XL. Youth sizes are available in XS through...

Get your hike on with an Ohio State Parks beanie! Made with knitted 100% acrylic material to keep you warm. One size fits all.

Stay warm and comfortable this winter with the Ohio State Parks reversible scarf. 100% acrylic jacquard knit scarfOne Size fits all Measures approx. 7" by 65" (including fringes)

The "Hellbenders Are REAL" t-shirt features Ohio's largest amphibian, the hellbender. The back of the shirt displays ODNR's 75th Anniversary logo making this limited edition shirt a meaningful way to commemorate our shared legacy of protecting and preserving nature. Made using a...

This Rope Handle 16oz Cotton Canvas Tote has an open main cotton compartment with a colored stripe accent and 10" rope handles. This is perfect for a day at the beach or on the boat. Adventure does await in Ohio...

Embrace the beauty of nature with our "Let It Grow" t-shirt. This tee is perfect for any lover of nature, plants or trees. The back of the shirt displays ODNR's 75th Anniversary logo making this limited edition shirt a meaningful way...

Perfect for birders and nature lovers alike, this design showcases your passion for Ohio's feathered friends! The back of the shirt displays ODNR's 75th Anniversary logo making this limited edition shirt a meaningful way to commemorate our shared legacy of...

Explore Ohio's great outdoors with our "Take a Hike" t-shirt. The back of the shirt displays ODNR's 75th Anniversary logo making this limited edition shirt a meaningful way to commemorate our shared legacy of protecting and preserving nature. Made using...

Celebrate the beauty of Ohio's native flora with our "Wild for Wildflowers" t-shirt. The back of the shirt displays ODNR's 75th Anniversary logo making this limited edition shirt a meaningful way to commemorate our shared legacy of protecting and preserving nature....

Sport your new Hocking Hills State Park shirt on your next adventure! Each shirt comes in a bpa free 28oz water bottle. Made using a cotton/poly fabric. Women's sizes ranging from S to XL are available in blue or pink....

Introducing the ODNR 75th Anniversary Edition Ohio State Parks Passport! This comprehensive passport is a must-have for every adventurer, nature enthusiast, and explorer across Ohio. Whether you're planning a family picnic, gearing up for a hike, or packing your tackle...

edited by Rodney M. Feldmann and Merrianne Hackathorn Bulletin 70: Fossils of Ohio covers all major groups and some minor groups of Ohio fossils and is written for both the beginner and the professional. The bulletin overviews the state's geology...

This downloadable booklet includes coloring sheets and guessing-game word scrambles for 10 of Ohio's most popular spring wildflowers, including the State Wildflower, the tr— oops, almost gave one answer away! Click here to get your Free Digital Copy today!

by Ernest H. Carlson Bulletin 69: Minerals of Ohio (2nd edition) is designed for a wide audience, from rock hounds to experienced mineralogists and examines 55 mineral species found throughout the state. The hard-cover book features a beautiful fluorite specimen,...

by C. E. Sherman This book comprises the final report by C. E. Sherman as part of the Ohio Cooperative Topographic Survey. It details the various systems of surveying employed in Ohio to define land boundaries. The book is of...

Designed for young learners, the 24-page book provides information and activities on the geology of Ohio from the Ordovician Period through the Ice Age. Activities include mazes, word searches, fill-in-the-blanks, connect-the-dots, and scenes for coloring. Topics include rocks and minerals,...

by Douglas L. Crowell Bulletin 72 traces the development of Ohio's coal-mining industry from the knowledge of coal by Ohio's earliest settlers to the impact of the Clean Air Act Amendments of 1990 and clean-coal technology. Over 200 historic photographs,...

by Gregory A. Schumacher, Brian E. Mott, and Michael P. Angle Written for a wide audience — from students and amateur geologists to experienced geoscience and engineering professionals — Information Circular (IC) 63 details the state's surficial deposits and near-surface bedrock units....

by D. Mark Jones This guidebook to the geology of the Ohio State Parks in the Lake Erie region describes the geological features of state parks to tell key parts of the history of the lake's formation and Ohio's geological...

by Keith A. Milam Guidebook 22 offers a useful tool to aid anyone in exploring what is now known as the Serpent Mound Impact Structure. The name derives from the Paleo-Indian effigy mound in the shape of a snake, located...

by Mark E. Wolfe, Brittany D. Parrick, and J. D. Stucker Guidebook 23 provides readers with a terrific tool to explore the region known as the "Little Smokies" — Shawnee State Park and State Forest. This guidebook is designed for a broad...

Buying an Ohio Wildlife Legacy Stamp allows wildlife enthusiasts the opportunity to directly impact the future of Ohio's native animals. For $15 you'll receive a collectible stamp, window cling, and commemorative card. Fourteen dollars of every $15 Ohio Wildlife Legacy...

by J. McDonald, J. G. Wells, J. W. Wright, C. D. Steck, L. H. Wickstrom, B. D. Gara, and L. V. Nguyen Ohio was the first state whose lands were subdivided by the federal government and sold off or given...

by E. R. Slucher, E. M. Swinford, G. E. Larsen, G. A. Schumacher, D. L. Shrake, C. L. Rice, M. R. Caudill, and R. G. Rea Map BG-1, along with associated text and figures, reveals the characteristics and distribution of...

by R. R. Pavey, R. P. Goldthwait, C. S. Brockman, D. N. Hull, E. M. Swinford, and R. G. Van horn The Quaternary Geology of Ohio map depicts the geologic units grouped by age (Holocene through Pre-Illinoian), depositional process (water-deposited,...

by C. B. Nelson, T. R. Valachovics, M. P. Angle, K. M. Hardin, T. A. Nash, P. N. Spahr, M. Raab, and C. J. Coe The Hydrogeologic Settings of Ohio map depicts the hydrogeology of the state's aquifer systems. Forty hydrogeologic...

by D. M. Powers, J. F. Laine, and R. R. Pavey This map depicts the topographic relief of Ohio's land scape using color to represent elevation intervals. The colorized topography has been digitally shaded from the northwest slightly above the...

by C. B. Nelson, T. R. Valachovics, M. P. Angle, K. M. Hardin, T. A. Nash, P. N. Spahr, M. Raab, and C. J. Coe The Groundwater Vulnerability Index Map of Ohio depicts an area's vulnerability to groundwater contamination based...

This vintage style artist rendering of the upper falls is sure to conjure treasured memories of past adventures at Hocking Hills and have you daydreaming of your next trip to Ohio’s great outdoors. The size of the poster is 16"...

Whether the covered bridge is the background for your picnic, hike, or camping adventure, it’s hard to imagine a trip Mohican State Park that doesn’t include this landmark. This vintage style artist rendering of the bridge will help you remember...

One of the most recognizable sites on Lake Erie’s shores, the Marblehead Lighthouse has been safely guiding sailors to shore since 1822. Conjure up your own memories of this special place with this vintage style artist rendering. The size of...

This vintage style artist rendering of the picturesque Lake Hope Dining Lodge overlooking the lake at night rekindles those memories of long days and quiet nights along the shoreline at this iconic state park. Relive those memories each of every...

Poster illustrated by Madison Perry This gorgeous poster features meticulously detailed hand illustrations of fossils found in the Columbus Limestone — a prominent rock unit used to build the Ohio Statehouse. Many of the fossils are represented as both actual specimens...

That hike to Hosak’s Cave can be more than a memory with this beautiful vintage inspired artist’s rendering. Put this somewhere you can see it as a frequent reminder of your past adventures at Salt Fork State Park and a...

Posters illustrated by Kyle HartshornOur newest posters help bring to life part of Ohio’s ancient past—a span of about 450 million years—and to explain how the Ohio we see today was shaped by dynamic geologic forces.Ohio's story begins in the...

A collection of seven vintage style artist renderings to conjure treasured memories of past adventures at Cowan Lake, Hocking Hills, Malabar Farm, Marblehead Lighthouse, Mohican, Lake Hope and Salt Fork State Parks. The size of the posters are 16" x...

This vintage style artist rendering of the lake is sure to conjure treasured memories of past adventures at Cowan Lake and have you daydreaming of your next trip to Ohio's great outdoors. The size of the poster is 16" x...