These points are all in IRAQ. They're also all near the 01-12 Becker-Hagens grid line. Node 01 is the first closest node; 12 is the 2nd closest. If you see a coordinate repeated on multiple lines, it usually means there are multiple names for that spot. The question is: why were the ruins built where they were? Before you look at the full list, look at this short list: These points are closer to the 01-12 grid line than other spots. Notice how Al Hammam is the winner for closeness in all of Iraq, when you disregard cities. Just so you know, the winner for closest city to a grid line goes to Sayyid Ni`mah (Lat: 30.8; Lon: 46.5333333), being only .00004 degrees away from the 01-12 grid line. Here's that short list (remember, cities were excluded): Lat Lon TCdiff Type Full_Name 31.0666667 44.0666667 0.03326 RUIN Al Hammam 30.5958333 47.7633333 0.20096 ISL Jazirat al Muhammadiyah 30.5958333 47.7633333 0.20096 ISL Jazirat ash Shalhah 30.9380556 45.8522222 -0.2641 ANS Zaqqurat Ur 30.9380556 45.8522222 -0.2641 ANS Ziggurat of Ur 30.7975000 45.9777778 0.30854 ANS Abu Shahrain 30.7975000 45.9777778 0.30854 ANS Abu Shahrein 30.7975000 45.9777778 0.30854 ANS Eridu 31.3166667 45.6500000 -1.9213 RUIN Akkadian Uruk 31.3166667 45.6500000 -1.9213 RUIN Erech 31.3166667 45.6500000 -1.9213 RUIN Tall al Warka' 31.3166667 45.6500000 -1.9213 RUIN Tel al Warka 31.3166667 45.6500000 -1.9213 RUIN Uruk 31.3166667 45.6500000 -1.9213 RUIN Warka Now, here's the full list, sorted by Longitude. This was done so you can visually see what's along the grid line, east to west, without having to look at a map. Lat Lon TC_diff Type Full_Name 31.0527778 43.0355556 0.67954 CMP Al `Ashuriyah 30.9816667 43.0525000 1.07057 RUIN At Tawil 31.4775000 43.1730556 -1.7829 BLDG Al Lasaf 31.2755556 43.2158333 -0.6676 BLDG As Samit 31.0666667 44.0666667 0.03326 RUIN Al Hammam 31.3333333 45.0500000 -1.7622 TMB Imam Salman 31.1500000 45.5333333 -1.0924 FT Kharaib Abdal Karim 31.1500000 45.5333333 -1.0924 FT Nazl `Abd al Karim 31.1500000 45.5333333 -1.0924 FT Nuzl `Abdul Karim 31.3166667 45.6500000 -1.9213 RUIN Akkadian Uruk 31.3166667 45.6500000 -1.9213 RUIN Erech 31.3166667 45.6500000 -1.9213 RUIN Tall al Warka' 31.3166667 45.6500000 -1.9213 RUIN Tel al Warka 31.3166667 45.6500000 -1.9213 RUIN Uruk 31.3166667 45.6500000 -1.9213 RUIN Warka 30.6594444 45.8308333 1.01825 RUIN Al Gusayr 30.6594444 45.8308333 1.01825 RUIN Al Qusayr 30.6594444 45.8308333 1.01825 RUIN Qasir 31.2833333 45.8500000 -1.8466 RUIN Sankara 30.9380556 45.8522222 -0.2641 ANS Zaqqurat Ur 30.9380556 45.8522222 -0.2641 ANS Ziggurat of Ur 31.1666667 45.9000000 -1.3322 FT Qal`a Umm Ajlan 31.1666667 45.9000000 -1.3322 FT Qal`at Umm `Ajlan 31.1666667 45.9000000 -1.3322 FT Umm `Ajlan 31.3000000 45.9333333 -1.9562 FT Qal`at Jihan 31.3000000 45.9333333 -1.9562 FT Qal`at Shihan 30.7975000 45.9777778 0.30854 ANS Abu Shahrain 30.7975000 45.9777778 0.30854 ANS Abu Shahrein 30.7975000 45.9777778 0.30854 ANS Eridu 30.5166667 46.0500000 1.52843 RUIN Qal`at Nab`ah 30.5166667 46.0500000 1.52843 RUIN Qasr Nab`ah 30.5166667 46.0500000 1.52843 RUIN Qasr Naba 30.4166667 46.1500000 1.90956 RUIN Qal`at Abu Ghar 31.2500000 46.3000000 -1.8767 TMB Imam Hamza 30.5666667 46.4000000 1.09373 ANS Tall al Lahm 30.5666667 46.4000000 1.09373 ANS Tell laham 31.1666667 46.4500000 -1.5690 FT Qal`a Khalid 31.1666667 46.4500000 -1.5690 FT Qal`at Khalid 30.5333333 46.9000000 0.94242 ANS Bab Salmeti 30.5333333 46.9000000 0.94242 ANS Bab Salmiti 30.5333333 46.9000000 0.94242 ANS Badselmeti 30.3833333 46.9333333 1.55595 OILF Al Luhays 30.3833333 46.9333333 1.55595 OILF Luhais 30.3666667 47.0000000 1.58453 DSRT As Sahra' al Janubiyah 30.4833333 47.0833333 1.04535 OILF Tuba 30.4833333 47.0833333 1.04535 OILF Tubah 30.4833333 47.1500000 1.00615 OILF Ar Ratawi 30.4833333 47.1500000 1.00615 OILF Ratawi 30.2758333 47.3700000 1.72916 OILF Ar Rumaylah 30.2758333 47.3700000 1.72916 OILF Rumaila 30.2758333 47.3700000 1.72916 OILF Rumailah 30.2758333 47.3700000 1.72916 OILF Rumaylah 30.2758333 47.3700000 1.72916 OILF Rumaylah Oilfield 30.3572222 47.5975000 1.2583 OILF Az Zubayr 30.3572222 47.5975000 1.2583 OILF Zubair 30.3572222 47.5975000 1.2583 OILF Zubayr Oilfield 30.4333333 47.6166667 0.93902 ANS Anas Bin Malik 30.4333333 47.6166667 0.93902 ANS Anis Bin Malik 30.3833333 47.6166667 1.14128 FT Qasr Nasr Allah 30.3833333 47.6166667 1.14128 FT Qasr Nasrulla 30.3833333 47.6166667 1.14128 FT Qasr Nasrullah 30.9166667 47.6333333 -1.0351 OILF Majnun 30.9166667 47.6333333 -1.0351 OILF Majoon 30.3000000 47.6333333 1.46764 FT Qasr Ibn ad Durayhimi 30.3000000 47.6333333 1.46764 FT Qasr Ibn Darahim 30.3000000 47.6333333 1.46764 FT Qasr Ibn Duraibim 30.3000000 47.6333333 1.46764 FT Qasr Ibn Duraihim 30.4327778 47.6777778 0.90583 FT Ash Shu`aybah 30.4327778 47.6777778 0.90583 FT Qal`at ash Shu`aybah 30.4327778 47.6777778 0.90583 FT Shu`aiba Fort 30.5958333 47.7633333 0.20096 ISL Jazirat al Muhammadiyah 30.5958333 47.7633333 0.20096 ISL Jazirat ash Shalhah 30.5772222 47.7772222 0.26837 ISL Jazirat as Sindibad 30.5666667 47.7833333 0.3075 ISL Coal Island 30.5666667 47.7833333 0.3075 ISL Jazirat al Waqf al Muha 30.5666667 47.7833333 0.3075 ISL Jazirat Atwiqaf 30.5036111 47.8702778 0.5124 ISL Jazirat as Salihiyah 30.4816667 47.9105556 0.57748 ISL `Ajairawiya 30.4816667 47.9105556 0.57748 ISL `Ajayrawiyah 30.4816667 47.9105556 0.57748 ISL `Ujayrawiyah 30.4816667 47.9105556 0.57748 ISL Ajairawiya Island 30.9166667 47.9833333 -1.1961 ANS Kishk al Basri 30.4611111 48.0366667 0.58851 ISL At Tuwaila 30.4611111 48.0366667 0.58851 ISL Jazirat At Tuwaylah 30.4611111 48.0366667 0.58851 ISL Jazirat Umm at Tuwaylah 30.4611111 48.0366667 0.58851 ISL Taweileh 30.4611111 48.0366667 0.58851 ISL Tuwaila Island 30.4677778 48.0405556 0.56 ISL Jazira al Bawarin 30.4677778 48.0405556 0.56 ISL Jazirat al Bawarin 30.4500000 48.0833333 0.60624 ISL Ash Shamshamiya 30.4500000 48.0833333 0.60624 ISL Ash Shamshamiya Island 30.4500000 48.0833333 0.60624 ISL Ash Shamshamiyah 30.4500000 48.0833333 0.60624 ISL Jazirat ash Shamshamiya 30.4333333 48.1166667 0.65312 ISL Ar Rumaylah al Kabirah 30.4333333 48.1166667 0.65312 ISL Jazirat Rumaylah 30.4333333 48.1166667 0.65312 ISL Rumailah 30.4333333 48.1166667 0.65312 ISL Rumailah Island 30.4330556 48.1236111 0.65031 ISL Jazirat Umm al Biyabi 30.4330556 48.1236111 0.65031 ISL Jazirat Umm al Ubabi 30.4330556 48.1236111 0.65031 ISL Um al Labani 30.4330556 48.1236111 0.65031 ISL Um al Labani Island 30.4330556 48.1236111 0.65031 ISL Umm al Labani 30.4330556 48.1236111 0.65031 ISL Umm al Libabi 30.4380556 48.1347222 0.62442 ISLX Dabba Island 30.4380556 48.1347222 0.62442 ISLX Dabbah 30.4380556 48.1347222 0.62442 ISLX Jazirat Umm al Khasasif 30.4380556 48.1347222 0.62442 ISLX Um al Khasasif 30.4380556 48.1347222 0.62442 ISLX Umm al Khasasif 30.4333333 48.1500000 0.63438 ISLX Jazireh-ye Omm Rasas 30.4333333 48.1500000 0.63438 ISLX Um al Rasas 30.4333333 48.1500000 0.63438 ISLX Um al Rasas Island 30.4333333 48.1500000 0.63438 ISLX Umm ar Rasas 30.3705556 48.1816667 0.86235 ISL Jazirat Abu Da'ud 30.3705556 48.1816667 0.86235 ISL Jazirat Abu Dawud 30.3452778 48.1838889 0.95991 ISL Al Qit`ah 30.3452778 48.1838889 0.95991 ISL Gat`a Island 30.3452778 48.1838889 0.95991 ISL Jazirat al Qit`ah 30.3452778 48.1838889 0.95991 ISL Jazirat Qat`ah 30.3452778 48.1838889 0.95991 ISL Q`ata Island Finally, here's the points 2 to 2.9999 degrees away. Again, sorted by Longitude: 30.7047222 43.1847222 2.52735 CAVE Kahf Jibrit 31.5833333 44.4333333 -2.7864 ANS Al Qadisiyah 31.5833333 44.4333333 -2.7864 ANS Qadisiya 31.5833333 44.4333333 -2.7864 ANS Qudisiyah 31.5844444 44.5538889 -2.8303 TMB Imam `Abd Allah 31.5844444 44.5538889 -2.8303 TMB Imam `Abd Allah Bin Naj 31.5333333 44.8166667 -2.6595 FT Qal`at as Saghir 31.5500000 44.9666667 -2.7911 TMB Imam al Musraj 31.4333333 45.1166667 -2.2735 FT Chamcha 31.3833333 45.1166667 -2.0311 TMB Qal`at as Sayyid Hasan 31.4500000 45.1500000 -2.3664 TMB Imam al Ahmar 31.4666667 45.2166667 -2.4705 FT Dudal-sh 31.3666667 45.2666667 -2.0083 FT Hachama 31.5333333 45.4000000 -2.8521 FT Qal`at Sayyid Muhsin 31.4000000 45.8166667 -2.3716 TMB Imam as Sikanah 31.3666667 45.8333333 -2.2239 FT Qal`a Ashma 31.3666667 45.8333333 -2.2239 FT Qal`at `Ashma' 31.3666667 45.8333333 -2.2239 FT Qal`at Ashmah 31.3666667 45.8333333 -2.2239 FT Qal`at Asma' 31.3500000 45.8500000 -2.1534 FT Qal`at Muqays 31.3833333 45.8666667 -2.3131 FT Qal` at Falih 31.4833333 45.8666667 -2.7737 FT Qal`a Maltus 31.4833333 45.8666667 -2.7737 FT Qal`at al Maltus 31.4833333 45.8666667 -2.7737 FT Qal`at Maltus 31.4333333 46.1333333 -2.6376 FT Ammar 30.3333333 46.2833333 2.18893 DSRT Ash Shamiyah 30.3011111 46.4272222 2.23343 RUIN Qasr Shagra 30.3011111 46.4272222 2.23343 RUIN Qasr Shaqra 30.3011111 46.4272222 2.23343 RUIN Qasr Shaqrah 30.3011111 46.4272222 2.23343 RUIN Shagra 30.3011111 46.4272222 2.23343 RUIN Shaqrah 31.4333333 46.4333333 -2.7427 TMB Imam Saiyid Muhsin Abu 31.4333333 46.4333333 -2.7427 TMB Imam Sayyid Muhsih Abu 31.4333333 46.4333333 -2.7427 TMB Imam Sayyid Muhsin 31.4333333 46.4333333 -2.7427 TMB Saiyid Muhsin Imam 31.4333333 46.4333333 -2.7427 TMB Sayyid Muhammad Imam 31.3500000 46.4833333 -2.3918 TMB Imam Sayyid Muhammad 31.2944444 46.7847222 -2.2627 RUIN Dasam ash Shanibah 30.2500000 47.0500000 2.04048 OILF Ar Raki 30.2500000 47.0500000 2.04048 OILF Rachi 29.7500000 48.8333333 2.81919 OILJ Al Bakr Terminal 29.7500000 48.8333333 2.81919 OILJ Bakr Port 29.7500000 48.8333333 2.81919 OILJ Mina' al Bakr