GC12F3R The Survey Meridian (Traditional Cache) in Oklahoma, United States created by OSLS - Oklahoma Society of Land Surveyors
![File:Allotment Map of Fractional Township 3 North of Range 4 West of the Indian Meridian in Indian Territory - NARA - 1767756.jpg - Wikimedia Commons File:Allotment Map of Fractional Township 3 North of Range 4 West of the Indian Meridian in Indian Territory - NARA - 1767756.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/9/92/Allotment_Map_of_Fractional_Township_3_North_of_Range_4_West_of_the_Indian_Meridian_in_Indian_Territory_-_NARA_-_1767756.jpg)
File:Allotment Map of Fractional Township 3 North of Range 4 West of the Indian Meridian in Indian Territory - NARA - 1767756.jpg - Wikimedia Commons
Allotment Map of Township 23 North of Range 20 East of the Indian Meridian in Indian Territory | DPLA
![Black Kettle National Grassland Oklahoma Indian Meridian - Oklahoma Maps - Digital Collections - Oklahoma State University Black Kettle National Grassland Oklahoma Indian Meridian - Oklahoma Maps - Digital Collections - Oklahoma State University](https://dc.library.okstate.edu/digital/api/singleitem/image/OKMaps/8439/default.jpg)
Black Kettle National Grassland Oklahoma Indian Meridian - Oklahoma Maps - Digital Collections - Oklahoma State University
![Madhyarekha: The ancient Indian astronomical median line that was centuries ahead of its time | by Sachin Jadhav | Medium Madhyarekha: The ancient Indian astronomical median line that was centuries ahead of its time | by Sachin Jadhav | Medium](https://miro.medium.com/max/754/1*KGRsEPW_s-wX_t12R8ZwQg.jpeg)