Interstates of Ohio
| Interstate 70 |
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A EB guide marker near Dayton. (May, 2004) |
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A guide marker on WB I-70 near West Jefferson. (July, 2019) |
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A guide marker on SB I-675, east of Dayton (April, 2025) |
| Interstate 71 |
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A EB guide marker in Cleveland. (August, 2012) |
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A guide marker on SB I-71. (April, 2025) |
| Interstate 74 |
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A EB guide marker near Taylors Creek. (June, 2003) |
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A EB guide marker near Harrison. (October, 2017) |
| Interstate 75 |
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A guide marker at the I-280 toll plaza on the Ohio Turnpike. (April, 2005) |
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A guide marker on NB I-75. (April, 2005) |
| Interstate 76 |
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A WB guide marker near the East Barrier on I-76/OH Turnpike. (May, 2004) |
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A WB guide marker on I-76/OH Turnpike. (May, 2004) |
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A guide marker on EB I-76, near Mogadore. (April, 2025) |
| Interstate 77 |
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A EB guide marker in Cleveland. (August, 2012) |
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A guide marker on SB I-77 in Akron. (April, 2025) |
| Interstate 80 |
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The first guide marker after the West Barrier on EB I-80/90/OH Turn. (January, 2004) |
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The first guide marker after I-75. (April, 2005) |
| Interstate 90 |
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The first guide marker after the West Barrier on EB I-80/90/OH Turn. (January, 2004) |
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The first guide marker after I-75. (April, 2005) |
| Interstate 270 |
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A guide marker on SB I-270. (July, 2019) |
| Interstate 275 |
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EB I-275 after I-74/U.S. Rt. 52. (June, 2003) |
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A SB guide marker south of I-74/U.S. Rt. 52. (October, 2017) |
| Interstate 277 |
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A guide marker EB I-277/U.S. Rt. 224 in Arkon. (April, 2025) |
| Interstate 280 |
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A guide marker at the I-280 toll plaza on the Ohio Turnpike. (April, 2005) |
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SB I-280 east of Toledo. (January, 2004) |
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A guide marker on NB Galena Street in Toledo. (April, 2025) |
| Interstate 470 |
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The first guide marker on EB I-470. (May, 2004) |
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A guide marker on WB I-470. (July, 2019) |
| Interstate 471 |
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The guide marker on SB U.S. 42. (October, 2017) |
| Interstate 475 |
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EB I-475 east of U.S. Rt. 23. (January, 2004) |
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A guide marker on SB Whiteford Road. (April, 2025) |
| Interstate 480 |
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A guide marker on EB I-480. (August, 2012) |
| Interstate 490 |
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A guide marker on EB I-490. (August, 2012) |
| Interstate 670 |
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A guide marker on WB I-670. (July, 2019) |
| Interstate 675 |
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A guide marker on NB I-675 near OH 725. (June, 2003) |
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A guide marker on SB I-675, east of Dayton (April, 2025) |
| Interstate 680 |
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A guide marker on NB I-680. (August, 2012) |
| Ohio Turnpike |
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A guide marker on EB I-80/90/Ohio Turn east of I-75. (May, 2005) |
| Lake Erie Circle Tour |
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A guide marker on EB OH St Rt 163 in Port Clinton. (May, 2005) |
| Lake Erie Coastal Ohio Trail |
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A guide marker on EB OH St Rt 163 in Port Clinton. (May, 2005) |