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USGS Map Name | Map Size | Scale | Latitude | Longitude | DRG Filename | View Map | ||||||
Iconium | 7.5deg x 7.5deg | 1:24,000 | 41.000°N - 40.875°N | 93.000°W - 92.875°W | o40092h8.tif | |||||||
Ida Grove | 7.5deg x 7.5deg | 1:24,000 | 42.375°N - 42.250°N | 95.500°W - 95.375°W | o42095c4.tif | |||||||
Ida Grove | 15min x 15min | 42.500°N - 42.250°N | 95.500°W - 95.250°W | |||||||||
Ida Grove | 60min x 60min | 1:100,000 | 42.500°N - 42.000°N | 96.000°W - 95.000°W | f42095a1.tif | |||||||
Ida Grove NW | 7.5deg x 7.5deg | 1:24,000 | 42.500°N - 42.375°N | 95.500°W - 95.375°W | o42095d4.tif | |||||||
Illinois City | 7.5deg x 7.5deg | 1:24,000 | 41.500°N - 41.375°N | 91.000°W - 90.875°W | o41090d8.tif | |||||||
Imogene | 7.5deg x 7.5deg | 1:24,000 | 41.000°N - 40.875°N | 95.500°W - 95.375°W | o40095h4.tif | |||||||
Independence | 7.5deg x 7.5deg | 1:24,000 | 42.500°N - 42.375°N | 92.000°W - 91.875°W | o42091d8.tif | |||||||
Indianola | 7.5deg x 7.5deg | 1:24,000 | 41.375°N - 41.250°N | 93.625°W - 93.500°W | o41093c5.tif | |||||||
Indianola | 15min x 15min | 41.500°N - 41.250°N | 93.750°W - 93.500°W | |||||||||
Indianola | 60min x 60min | 1:100,000 | 41.500°N - 41.000°N | 94.000°W - 93.000°W | f41093a1.tif | |||||||
Ingham Lake | 7.5deg x 7.5deg | 1:24,000 | 43.375°N - 43.250°N | 94.750°W - 94.625°W | o43094c6.tif | |||||||
Inwood | 7.5deg x 7.5deg | 1:24,000 | 43.375°N - 43.250°N | 96.500°W - 96.375°W | o43096c4.tif | |||||||
Ionia | 7.5deg x 7.5deg | 1:24,000 | 43.125°N - 43.000°N | 92.500°W - 92.375°W | o43092a4.tif | |||||||
Iowa City | 15min x 15min | 41.750°N - 41.500°N | 91.750°W - 91.500°W | |||||||||
Iowa City | 60min x 60min | 1:100,000 | 42.000°N - 41.500°N | 92.000°W - 91.000°W | f41091e1.tif | |||||||
Iowa City East | 7.5deg x 7.5deg | 1:24,000 | 41.750°N - 41.625°N | 91.500°W - 91.375°W | o41091f4.tif | |||||||
Iowa City West | 7.5deg x 7.5deg | 1:24,000 | 41.750°N - 41.625°N | 91.625°W - 91.500°W | o41091f5.tif | |||||||
Iowa Falls | 60min x 60min | 1:100,000 | 43.000°N - 42.500°N | 94.000°W - 93.000°W | f42093e1.tif | |||||||
Iowa Falls East | 7.5deg x 7.5deg | 1:24,000 | 42.625°N - 42.500°N | 93.250°W - 93.125°W | o42093e2.tif | |||||||
Iowa Falls West | 7.5deg x 7.5deg | 1:24,000 | 42.625°N - 42.500°N | 93.375°W - 93.250°W | o42093e3.tif | |||||||
Iowa Great Lakes | 60min x 60min | 1:100,000 | 43.500°N - 43.000°N | 96.000°W - 95.000°W | f43095a1.tif | |||||||
Ireton | 7.5deg x 7.5deg | 1:24,000 | 43.000°N - 42.875°N | 96.375°W - 96.250°W | o42096h3.tif | |||||||
Ireton | 15min x 15min | 43.000°N - 42.750°N | 96.500°W - 96.250°W | |||||||||
Ireton SW | 7.5deg x 7.5deg | 1:24,000 | 42.875°N - 42.750°N | 96.500°W - 96.375°W | o42096g4.tif | |||||||
Irwin | 7.5deg x 7.5deg | 1:24,000 | 41.875°N - 41.750°N | 95.250°W - 95.125°W | o41095g2.tif | |||||||
Ivester | 7.5deg x 7.5deg | 1:24,000 | 42.375°N - 42.250°N | 93.000°W - 92.875°W | o42092c8.tif |