There are three files to download per quad:
xxxxxx.sdw
xxxxxx.sid
xxxxxx.txt

Click here for DRG's

Click here for DOQQ's
3190A1 TYLERTOWN SE
3190A2 TYLERTOWN
3190A3 PROGRESS
3190A4 OSYKA
3190A5 TERRYS CREEK
3190A6 GILLSBURG
3190A7 STREET
3190A8 BERWICK
3190B1 KOKOMO
3190B2 MESA
3190B3 HOLMESVILLE
3190B4 MCCOMB SOUTH
3190B5 LAKE TANGIPAHOA
3190B6 PEORIA
3190B7 LIBERTY
3190B8 BEWELCOME
3190C1 DARBUN
3190C2 JAYESS
3190C3 PRICEDALE
3190C4 MCCOMB NORTH
3190C5 AUBURN
3190C6 SMITHDALE
3190C7 BUSY CORNER
3190C8 HOMOCHITTO
3190D1 TILTON
3190D2 TOPEKA
3190D3 RUTH
3190D4 BOGUE CHITTO
3190D5 WEST LINCOLN
3190D6 LITTLE SPRINGS
3190D7 BUDE
3190D8 MEADVILLE
3190E1 MONTICELLO
3190E2 NOLA
3190E3 FAIR OAK SPRINGS
3190E4 BROOKHAVEN
3190E5 ZETUS
3190E6 MCCALL CREEK
3190E7 EDDICETOWN
3190E8 KIRBY
3190F1 MONTICELLO NE
3190F2 OMA
3190F3 STRONGHOPE
3190F4 WESSON
3190F5 MIDWAY
3190F6 CASEYVILLE
3190F7 UNION CHURCH
3190F8 GIN BRANCH
3190G1 SCHLEY
3190G2 GEORGETOWN
3190G3 SHADY GROVE
3190G4 HAZELHURST
3190G5 SMYRNA
3190G6 BARLOW
3190G7 MCBRIDE
3190G8 RED LICK
3190H1 HARRISVILLE
3190H2 HOPEWELL
3190H3 CRYSTAL SPRINGS
3190H4 GALLMAN
3190H5 DENTVILLE
3190H6 DENTVILLE NW
3190H7 HERMANVILLE
3190H8 PORT GIBSON