Ben Colter Polygonal Barn

{{Use mdy dates|date=March 2025}}

{{Infobox NRHP

| name = Ben Colter Polygonal Barn

| nrhp_type =

| image = Ben Colter Polygonal Barn.jpg

| caption = Ben Colter Polygonal Barn, November 2011

| location = Eastern side of State Road 101, 0.6 miles south of its junction with Piqua Rd. and north of Pleasant Mills, St. Marys Township, Adams County, Indiana

| coordinates = {{coord|40|47|53|N|84|50|27|W|display=inline,title}}

| locmapin = USA Indiana Adams County#Indiana#USA

| built = c. {{Start date|1907}}

| builder = Colter, Ben

| architecture = Six-sided barn

| added = April 2, 1993

| area = less than one acre

| mpsub = {{NRHP url|id=64500218|title=Round and Polygonal Barns of Indiana MPS}}

| refnum = 93000194{{NRISref|version=2010a}}

}}

Ben Colter Polygonal Barn, also known as the Reinhart Barn, is a historic hexagonal barn located at St. Marys Township, Adams County, Indiana. It was built about 1907, and is a six-sided, two-story, frame barn with a cone roof and cupola. Attached to the barn is a drive-through shed.{{cite web| url = https://secure.in.gov/apps/dnr/shaard/welcome.html| title = Indiana State Historic Architectural and Archaeological Research Database (SHAARD) | publisher = Department of Natural Resources, Division of Historic Preservation and Archaeology | format = Searchable database| accessdate = 2015-07-01}} Note: This includes {{cite web| url = https://secure.in.gov/apps/dnr/shaard/r/20bbc/N/Colter_Polygonal_Barn_Adamns_CO_Nom.pdf| title = National Register of Historic Places Inventory Nomination Form: Ben Colter Polygonal Barn| accessdate = 2015-07-01| author = Jerry McMahan| format = PDF| date= November 1991}}

It was listed on the National Register of Historic Places in 1993.