The Ohio State University at Newark

Newark Earthworks Center

The Newark Earthworks Center is an interdisciplinary academic center of the Ohio State University that supports programs and research about earthen architecture, including earthworks and conical mounds, in order to promote a better understanding of American Indian pre-contact histories and cultures throughout the Great Lakes region.

The NEC's projects and programs often represent collaborations between organizational partners, American Indian Tribal Nations, community residents, teachers and scholars, students and community members.

The Newark Earthworks Center promotes multidisciplinary research, educational enrichment for undergraduate students, public lectures and events, teacher resources, outreach and engagement.

Our objectives:

  • Promoting interdisciplinary research.
  • Enriching undergraduate education opportunities.
  • Improving teaching about Native American earthworks, histories, & cultures, and
  • Creating partnerships throughout Ohio & the Midwest.

Newark Earthworks Center

The Ohio State University at Newark
1179 University Drive
Newark, OH 43055

Phone: 740-364-9584
Fax: 740-366-6692

For recent news and our calendar, please visit our blog!

Upcoming Event

Octagon State Memorial Open House: Monday, October 10, 2016

Newark Earthworks, Octagon State Memorial. Image courtesy of Timothy E. Black

The grounds of the Octagon State Memorial will be open to the public for general strolling and viewing from sunrise to sunset on Monday, October 10, 2016. For more information on the Newark Earthworks' cultural context and history, visit the Ancient Ohio Trail website.

Octagon State Memorial
125 N. 33rd Street
Newark, OH 43055

New book published about the Newark Earthworks!

The Newark Earthworks are a mystery of the ancient world. However, a new book written and edited by scholars at the Columbus and Newark campuses of The Ohio State University called The Newark Earthworks: Enduring Monuments, Contested Meanings answers some of the questions surrounding the geometrical mounds of earth that were built nearly two thousand years ago.


Observations and ceremonies are being held across the land until June 29 to mark the 2016 National Days of Prayer to Protect Native American Sacred Places.

In Ohio, observations are being held at the Great Circle and Octagon Earthworks in Newark, Hopewell Culture National Historic Park in Chillicothe, Mound City & Fort Ancient Earthworks in Oregonia, and Serpent Mound in Peebles.

For more information click here.

"Protect Sacred Places" Sites and Events

Octagon Spring Open House

125 North 3rd Street, Newark
April 17 & 18, 2016
Dawn to Dusk
Guided tours by the Newark Earthworks Center will be available on Sunday.

Free and open to the public.

Lunar Alignment at the Octagon Earthworks

You are invited to see the moon rise in alignment with the Octagon Earthworks. Very few people have experienced this event for hundreds of years.

Join us on either of two evenings: Friday, November 27, or Saturday, November 28. Bring your family and friends. You will be the guests of The Ohio State University's Newark Earthworks Center and the Ohio History Connection.

We will see a northern minimum moonrise at this amazing site built by ancestors of American Indians two thousand years ago. Here is what it looked like earlier this fall:

Multiple exposure shows the path of the moonrise above the south wall at the Octagon Earthworks in Newark, Ohio, early Monday, Sept. 7, 2015. Image was taken at three-minute intervals beginning at 2:11 a.m. (Photo by Timothy E. Black)

Friday, November 27, 2015 from 6:15 - 7:45 p.m.
Saturday November 28, 2015 from 7:15 - 8:45 p.m.
Open to the public.

125 N. 33rd Street, Newark, OH
Park in the parking lot and gather at the large sign next to the parking lot. Bring a flashlight. If the weather seems to threaten the event, call 740-364-0584 on either of these days for an update.

The moon follows an 18.6 year cycle. The Newark Octagon, built two thousand years ago by ancestors of today’s American Indians, aligns with eight “standstill points” in the cycle of the moon. Those who built the Octagon understood that every month the place on the horizon where the moon first rises moves south for roughly 14 nights and then returns again. Further, the distance it moves between the first and 14th night grows greater every month for 9.3 years and then shrinks again until it is the same distance it had been at the beginning.

These ancient America Indians identified four "standstills" points when the rising moon seemed to stop going in one direction and began going in the other: the northernmost rising of the moon and the southern-most, the northern minimum and the southern minimum. They also observed another four times when the setting moon did the same: the northernmost and southernmost moonset, the northern minimum and southern minimum moonset.

Although the moon arrives at each of these standstill points only once every 18.6 years, it is very close to each of them on several nights. November 27 and 28 are the last dates on which we are likely to see the northern minimum moonrise for the next 18.6 years.

Octagon Earthworks Open House

Sunday, October 11, 2015
Open to the public for general strolling and viewing from sunrise to sunset.
Open House 1 - 4:00 p.m.

125 N. 33rd Street, Newark, OH.

Newark Earthworks Octagon

A rare moon alignment took place at the Newark Earthworks Octagon this fall. To celebrate the occasion, the public was invited to visit and tour the Octagon Earthworks on Sunday, October 11.

The Octagon is only open to the public for general strolling and viewing from sunrise to sunset for four days of the year, and October 11th was the last of those days for 2015.

Eight different moon alignments are built into the Octagon site, some of which will occur later this fall, such as the northern and southern moonrises and moonsets expected to begin on October 17th at approximately 10:05 p.m. These spectacular lunar alignments and the unbelievable precision with which these mounds were built are just two reasons the Newark Earthworks, Fort Ancient Earthworks and earthworks at Hopewell Culture National Historical Park in Chillicothe are being promoted for inscription on the UNESCO World Heritage site list.

This free event is open to anyone excited to learn more about the amazing alignments of the moon and the Octagon, which only occurs about every 18 years. Tour guides from The Ohio State University’s Newark Earthworks Center and the Ohio History Connection will be present to lead guests through the site and explain the lunar alignment phenomenon.

The American Indian site known as the Octagon was built approximately 2000 years ago and is one of the most spectacular surviving remnants of the Newark Earthworks. The octagonal enclosure is large enough to contain four Roman Colosseums and is connected to a perfectly circular enclosure 1,054 feet in diameter. The architecture of the Octagon Earthworks encodes a sophisticated understanding of geometry and astronomy. The Octagon State Memorial is part of the Hopewell Ceremonial Earthworks and is a National Historical landmark.

For more information please contact us at 740.364.9584 or
The Octagon Earthworks is located at 125 N. 33rd Street, Newark, OH.

For more information on The Ohio State University’s Newark Earthworks Center visit

We hope to see you in Spring 2016 (date to be announced) at our next open house when you can take advantage of this rare opportunity and come walk where generations of American Indians have walked and experience this wonder of the ancient world!


Presentation: Blackhand Gorge, Flint Ridge and the Newark Earthworks
Natural beauty and ancient history's connections

Tuesday, September 22, 2015
4:00 p.m.
John L. and Christine Warner Library and Student Center, Room 126 (Platform)x
Newark campus

Bill Weaver, site manager of Flint Ridge State Memorial gave a presentation on these three wonderful sites.
To learn more visit Ancient Ohio Trail.

American Indians Returning to the Earthworks

February 11, 2015; 4:00 p.m.
"Contemporary American Indian Arts: Including Earthworks" Dr. Christine Ballengee-Morris, Eastern Band, Cherokee Professor of Arts Administration, Education ad Policy and Coordinator of the American Indian Studies Program at The Ohio State University

February 18, 2015; 4:00 p.m. "Tribal Participation and the Preservation of Ohio Earthworks" Marti L. Chaatsmith, Comanche Citizen/Choctaw Nation of Oklahoma Descendent
Associate Director of The Newark Earthworks Center, The Ohio State University at Newark

February 25, 2015; 4:00 p.m.
"The Pokagon Band of Potawatomi Indians - Survival and Revival through Storytelling" Dr. John Low, Citizen of the Pokagon Band of the Potawatomi Indian Nation
Ohio State University Assistant Professor of Comparative Studies

2014 Autumn Semester: My Dream Show by Candi Wesaw

LeFevre Art Gallery
The Ohio State University at Newark

Candi Wesaw is from Hartford, Michigan and a citizen of the Pokagon Band of Potawatomi Indian Nation (although her blood lines also include Nottawaseppi Huron and Gun Lake bands of Potawatomi, and Little River Odawa). She has is deeply connected to her culture, heritage, and the arts. She works in multiple mediums and formats, including illustration, textiles, photography, and traditional native arts. Candi Wesaw has illustrated a series of children’s books about the Potawatomi, and is motivated to share her talent with youngsters to promote mutual cultural understandings. Examples of her work can be found, here.

For more information about artist Candi Wesaw, click here.

A reception for the artist was held on October 12, 2014 at the LeFevre Art Gallery. For more information and photos click here.


On October 12, 2014, the grounds of the Octagon State Memorial were opened to the public
for general strolling and viewing from sunrise to sunset.

Special guests, Candi Wesaw and other citizens of the Pokagon Band of Potawatomi Indian Nation were given a guided tour of the memorial by Dick Shiels, Director of the Newark Earthworks Center.

Dick Shiels starts the tour for the Pokagon Band. Deborah and Bruce Delk (photo on right) lead the caravan of golf carts to their first destination.

Roger Williams, Linda Morseau, Stanley Morseau, Susan Truesdell and Maxine Marigotta enjoying the tour.

Members of the Pokagon Band of the Potatowami Indian Nation enjoy a beautiful day during the tour of the Octagon State Memorial led by Dick Shiels, Director of the Newark Earthworks Center. Eighteen elders of the Pokagon Band travelled to Newark from southwest Michigan and northwest Indiana to attend the open house and an artist's reception for Candi Wesaw. Pictured at right is Majel DeMarsh.

In the five photos above, local citizens tour the Octagon Earthworks State Memorial, opened to the public for tours and viewing on October 12, 2014.