BEGIN_USGS_DOQ_HEADER                                                         *
QUADRANGLE_NAME "TWIN SISTERS"                           3.75 or 7.5-min. name*
QUADRANT SW                     quadrant indicator if cell size = 3.75-minutes*
WEST_LONGITUDE -110  7 30.000                signed deg min sec SDDD MM SS.SSS*
EAST_LONGITUDE -110  3 45.000                signed deg min sec SDDD MM SS.SSS*
NORTH_LATITUDE   46 48 45.000                signed deg min sec SDDD MM SS.SSS*
SOUTH_LATITUDE   46 45  0.000                signed deg min sec SDDD MM SS.SSS*
PRODUCTION_DATE 2002 10 22                                          yyyy mm dd*
RASTER_ORDER LEFT_RIGHT/TOP_BOTTOM                         video display order*
BAND_ORGANIZATION "SINGLE FILE"              single file or BSQ, or BIL or BIP*
BAND_CONTENT BLACK&WHITE                         black&white or red green blue*
BITS_PER_PIXEL  8                                       radiometric resolution*
SAMPLES_AND_LINES   5512  7609                      number of columns and rows*
HORIZONTAL_DATUM NAD83                                primary horizontal datum*
HORIZONTAL_COORDINATE_SYSTEM UTM                                              *
COORDINATE_ZONE     12                           coordinate system zone number*
HORIZONTAL_UNITS METERS                                coordinate system units*
HORIZONTAL_RESOLUTION  1.00                pixel horiz. ground sample distance*
SECONDARY_HORIZONTAL_DATUM NAD27                    secondary horizontal datum*
XY_ORIGIN   566396.000  5185056.000      coord. of upper left pixel pri. datum*
SECONDARY_XY_ORIGIN   566456.000  5184844.000 coord upper left pixel sec datum*
NATION US                                                          nation code*
STATE MT                                                        state fip code*
NW_QUAD_CORNER_XY   566754.578  5184699.922  XY coords. of pri. NW quad corner*
NE_QUAD_CORNER_XY   571522.737  5184754.916  XY coords. of pri. NE quad corner*
SE_QUAD_CORNER_XY   571605.558  5177809.840  XY coords. of pri. SE quad corner*
SW_QUAD_CORNER_XY   566831.877  5177754.840  XY coords. of pri. SW quad corner*
SECONDARY_NW_QUAD_XY   566756.627  5184481.488  XY coords. - sec. NW quad cor.*
SECONDARY_NE_QUAD_XY   571524.932  5184536.483  XY coords. - sec. NE quad cor.*
SECONDARY_SE_QUAD_XY   571607.753  5177591.439  XY coords. - sec. SE quad cor.*
SECONDARY_SW_QUAD_XY   566833.925  5177536.437  XY coords. - sec. SW quad cor.*
RMSE_XY  2.30                                              doq horiz. accuracy*
IMAGE_SOURCE "BLACK AND WHITE FILM"             b&w, cir, natural color, other*
SOURCE_IMAGE_ID "NAPP 9172 052"                                source image id*
SOURCE_IMAGE_DATE 1997  8 23                   source image date as yyyy mm dd*
SOURCE_DEM_DATE 1968 00 00                          source dem date yyyy mm dd*
AGENCY "ROCKY MOUNTAIN MAPPING CENTER (RMMC)"                 oversight agency*
PRODUCER "ROCKY MOUNTAIN MAPPING CENTER (RMMC)"                               *
PRODUCTION_SYSTEM "DV2.6.4 1/00 OV2.6 6/00"                  production system*
STANDARD_VERSION 1996 12                               version of DOQ standard*
METADATA_DATE 2002 10 22                   date created or changed, yyyy mm dd*
DATA_FILE_SIZE   41946320                               data set size in bytes*
BYTE_COUNT   5512                                            header byte count*