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| USGS Map Name | Map Size | Scale | Latitude | Longitude | DRG Filename | View Map | ||||||
| Abingdon | 7.5deg x 7.5deg | 1:24,000 | 40.875°N - 40.750°N | 90.500°W - 90.375°W | o40090g4.tif | |||||||
| Adair | 7.5deg x 7.5deg | 1:24,000 | 40.500°N - 40.375°N | 90.500°W - 90.375°W | o40090d4.tif | |||||||
| Addieville | 7.5deg x 7.5deg | 1:24,000 | 38.500°N - 38.375°N | 89.500°W - 89.375°W | o38089d4.tif | |||||||
| Akin | 7.5deg x 7.5deg | 1:24,000 | 38.000°N - 37.875°N | 88.750°W - 88.625°W | o37088h6.tif | |||||||
| Albion | 15min x 15min | 38.500°N - 38.250°N | 88.250°W - 88.000°W | |||||||||
| Albion North | 7.5deg x 7.5deg | 1:24,000 | 38.500°N - 38.375°N | 88.125°W - 88.000°W | o38088d1.tif | |||||||
| Albion NW | 7.5deg x 7.5deg | 1:24,000 | 38.500°N - 38.375°N | 88.250°W - 88.125°W | o38088d2.tif | |||||||
| Albion South | 7.5deg x 7.5deg | 1:24,000 | 38.375°N - 38.250°N | 88.125°W - 88.000°W | o38088c1.tif | |||||||
| Aledo | 60min x 60min | 1:100,000 | 41.500°N - 41.000°N | 91.000°W - 90.000°W | f41090a1.tif | |||||||
| Aledo East | 7.5deg x 7.5deg | 1:24,000 | 41.250°N - 41.125°N | 90.750°W - 90.625°W | o41090b6.tif | |||||||
| Aledo West | 7.5deg x 7.5deg | 1:24,000 | 41.250°N - 41.125°N | 90.875°W - 90.750°W | o41090b7.tif | |||||||
| Alexander | 7.5deg x 7.5deg | 1:24,000 | 39.750°N - 39.625°N | 90.125°W - 90.000°W | o39090f1.tif | |||||||
| Alexis | 15min x 15min | 41.250°N - 41.000°N | 90.750°W - 90.500°W | |||||||||
| Alexis | 7.5deg x 7.5deg | 1:24,000 | 41.125°N - 41.000°N | 90.625°W - 90.500°W | o41090a5.tif | |||||||
| Allerton | 7.5deg x 7.5deg | 1:24,000 | 40.000°N - 39.875°N | 88.000°W - 87.875°W | o39087h8.tif | |||||||
| Alsey | 7.5deg x 7.5deg | 1:24,000 | 39.625°N - 39.500°N | 90.500°W - 90.375°W | o39090e4.tif | |||||||
| Altamont East | 7.5deg x 7.5deg | 1:24,000 | 39.125°N - 39.000°N | 88.750°W - 88.625°W | o39088a6.tif | |||||||
| Altamont West | 7.5deg x 7.5deg | 1:24,000 | 39.125°N - 39.000°N | 88.875°W - 88.750°W | o39088a7.tif | |||||||
| Altenburg | 15min x 15min | 37.750°N - 37.500°N | 89.750°W - 89.500°W | |||||||||
| Altenburg | 7.5deg x 7.5deg | 1:24,000 | 37.750°N - 37.625°N | 89.625°W - 89.500°W | o37089f5.tif | |||||||
| Alto Pass | 15min x 15min | 37.750°N - 37.500°N | 89.500°W - 89.250°W | |||||||||
| Alton | 7.5deg x 7.5deg | 1:24,000 | 39.000°N - 38.875°N | 90.250°W - 90.125°W | o38090h2.tif | |||||||
| Alton | 15min x 15min | 39.000°N - 38.750°N | 90.250°W - 90.000°W | |||||||||
| Ambia | 7.5deg x 7.5deg | 1:24,000 | 40.500°N - 40.375°N | 87.625°W - 87.500°W | o40087d5.tif | |||||||
| Amboy | 7.5deg x 7.5deg | 1:24,000 | 41.750°N - 41.625°N | 89.375°W - 89.250°W | o41089f3.tif | |||||||
| Amboy | 15min x 15min | 41.750°N - 41.500°N | 89.500°W - 89.250°W | |||||||||
| Ames | 7.5deg x 7.5deg | 1:24,000 | 38.250°N - 38.125°N | 90.125°W - 90.000°W | o38090b1.tif | |||||||
| Andalusia | 7.5deg x 7.5deg | 1:24,000 | 41.500°N - 41.375°N | 90.750°W - 90.625°W | o41090d6.tif | |||||||
| Andover | 7.5deg x 7.5deg | 1:24,000 | 41.375°N - 41.250°N | 90.375°W - 90.250°W | o41090c3.tif | |||||||
| Anna | 7.5deg x 7.5deg | 1:24,000 | 37.500°N - 37.375°N | 89.250°W - 89.125°W | o37089d2.tif | |||||||
| Annada | 7.5deg x 7.5deg | 1:24,000 | 39.375°N - 39.250°N | 90.875°W - 90.750°W | o39090c7.tif | |||||||
| Annapolis | 7.5deg x 7.5deg | 1:24,000 | 39.250°N - 39.125°N | 87.875°W - 87.750°W | o39087b7.tif | |||||||
| Annapolis | 15min x 15min | 39.250°N - 39.000°N | 88.000°W - 87.750°W | |||||||||
| Annawan | 7.5deg x 7.5deg | 1:24,000 | 41.500°N - 41.375°N | 90.000°W - 89.875°W | o41089d8.tif | |||||||
| Annawan | 15min x 15min | 41.500°N - 41.250°N | 90.000°W - 89.750°W | |||||||||
| Antioch | 7.5deg x 7.5deg | 1:24,000 | 42.500°N - 42.375°N | 88.125°W - 88.000°W | o42088d1.tif | |||||||
| Apple River | 7.5deg x 7.5deg | 1:24,000 | 42.625°N - 42.500°N | 90.125°W - 90.000°W | o42090e1.tif | |||||||
| Appleton | 7.5deg x 7.5deg | 1:24,000 | 41.000°N - 40.875°N | 90.250°W - 90.125°W | o40090h2.tif | |||||||
| Arcola | 7.5deg x 7.5deg | 1:24,000 | 39.750°N - 39.625°N | 88.375°W - 88.250°W | o39088f3.tif | |||||||
| Arcola | 15min x 15min | 39.750°N - 39.500°N | 88.500°W - 88.250°W | |||||||||
| Arenzville | 15min x 15min | 40.000°N - 39.750°N | 90.500°W - 90.250°W | |||||||||
| Arenzville East | 7.5deg x 7.5deg | 1:24,000 | 40.000°N - 39.875°N | 90.375°W - 90.250°W | o39090h3.tif | |||||||
| Arenzville West | 7.5deg x 7.5deg | 1:24,000 | 40.000°N - 39.875°N | 90.500°W - 90.375°W | o39090h4.tif | |||||||
| Argenta | 7.5deg x 7.5deg | 1:24,000 | 40.000°N - 39.875°N | 88.875°W - 88.750°W | o39088h7.tif | |||||||
| Arlington Heights | 7.5deg x 7.5deg | 1:24,000 | 42.125°N - 42.000°N | 88.000°W - 87.875°W | o42087a8.tif | |||||||
| Armington | 7.5deg x 7.5deg | 1:24,000 | 40.375°N - 40.250°N | 89.375°W - 89.250°W | o40089c3.tif | |||||||
| Arrowsmith | 7.5deg x 7.5deg | 1:24,000 | 40.500°N - 40.375°N | 88.750°W - 88.625°W | o40088d6.tif | |||||||
| Arrowsmith | 15min x 15min | 40.500°N - 40.250°N | 88.750°W - 88.500°W | |||||||||
| Arthur | 7.5deg x 7.5deg | 1:24,000 | 39.750°N - 39.625°N | 88.500°W - 88.375°W | o39088f4.tif | |||||||
| Ashburn | 7.5deg x 7.5deg | 1:24,000 | 39.625°N - 39.500°N | 91.250°W - 91.125°W | o39091e2.tif | |||||||
| Ashland | 7.5deg x 7.5deg | 1:24,000 | 40.000°N - 39.875°N | 90.125°W - 90.000°W | o39090h1.tif | |||||||
| Ashley | 15min x 15min | 38.500°N - 38.250°N | 89.250°W - 89.000°W | |||||||||
| Ashley | 7.5deg x 7.5deg | 1:24,000 | 38.375°N - 38.250°N | 89.250°W - 89.125°W | o38089c2.tif | |||||||
| Ashmore | 7.5deg x 7.5deg | 1:24,000 | 39.625°N - 39.500°N | 88.125°W - 88.000°W | o39088e1.tif | |||||||
| Ashton | 7.5deg x 7.5deg | 1:24,000 | 41.875°N - 41.750°N | 89.250°W - 89.125°W | o41089g2.tif | |||||||
| Assumption | 15min x 15min | 39.750°N - 39.500°N | 89.250°W - 89.000°W | |||||||||
| Assumption | 7.5deg x 7.5deg | 1:24,000 | 39.625°N - 39.500°N | 89.125°W - 89.000°W | o39089e1.tif | |||||||
| Astoria | 7.5deg x 7.5deg | 1:24,000 | 40.250°N - 40.125°N | 90.375°W - 90.250°W | o40090b3.tif | |||||||
| Athens | 7.5deg x 7.5deg | 1:24,000 | 40.000°N - 39.875°N | 89.750°W - 89.625°W | o39089h6.tif | |||||||
| Athensville | 7.5deg x 7.5deg | 1:24,000 | 39.500°N - 39.375°N | 90.250°W - 90.125°W | o39090d2.tif | |||||||
| Atkinson | 7.5deg x 7.5deg | 1:24,000 | 41.500°N - 41.375°N | 90.125°W - 90.000°W | o41090d1.tif | |||||||
| Atwater | 7.5deg x 7.5deg | 1:24,000 | 39.375°N - 39.250°N | 89.750°W - 89.625°W | o39089c6.tif | |||||||
| Atwood | 7.5deg x 7.5deg | 1:24,000 | 39.875°N - 39.750°N | 88.500°W - 88.375°W | o39088g4.tif | |||||||
| Augusta | 7.5deg x 7.5deg | 1:24,000 | 40.250°N - 40.125°N | 91.000°W - 90.875°W | o40090b8.tif | |||||||
| Augusta | 15min x 15min | 40.250°N - 40.000°N | 91.000°W - 90.750°W | |||||||||
| Aurora | 60min x 60min | 1:100,000 | 42.000°N - 41.500°N | 89.000°W - 88.000°W | f41088e1.tif | |||||||
| Aurora | 1deg x 2deg | 1:250,000 | 42.000°N - 41.000°N | 90.000°W - 88.000°W | c41088a1.tif | |||||||
| Aurora | 30min x 30min | 42.000°N - 41.500°N | 88.500°W - 88.000°W | |||||||||
| Aurora E | 1deg x 1deg | 42.000°N - 41.000°N | 89.000°W - 88.000°W | |||||||||
| Aurora North | 7.5deg x 7.5deg | 1:24,000 | 41.875°N - 41.750°N | 88.375°W - 88.250°W | o41088g3.tif | |||||||
| Aurora South | 7.5deg x 7.5deg | 1:24,000 | 41.750°N - 41.625°N | 88.375°W - 88.250°W | o41088f3.tif | |||||||
| Aurora W | 1deg x 1deg | 42.000°N - 41.000°N | 90.000°W - 89.000°W | |||||||||
| Ava | 7.5deg x 7.5deg | 1:24,000 | 38.000°N - 37.875°N | 89.500°W - 89.375°W | o37089h4.tif | |||||||
| Avena | 7.5deg x 7.5deg | 1:24,000 | 39.125°N - 39.000°N | 89.000°W - 88.875°W | o39088a8.tif | |||||||
| Avon | 15min x 15min | 40.750°N - 40.500°N | 90.500°W - 90.250°W | |||||||||
| Avon | 7.5deg x 7.5deg | 1:24,000 | 40.750°N - 40.625°N | 90.500°W - 90.375°W | o40090f4.tif |