Arc: describe rivers
                Description of SINGLE precision coverage rivers

                                FEATURE CLASSES

                                    Number of  Attribute     Spatial
Feature Class          Subclass     Features   data (bytes)  Index?   Topology?
-------------          --------     ---------  ------------  -------  ---------
ARCS                                    29922        54
NODES                                   35787
ANNOTATIONS            ANNO1MIL           591         8
                       ANNO2MIL            11
                       GAAR1MIL            28
                        NPS1MIL           590
                        SUB_CPR            80         8

                               SECONDARY FEATURES

Tics                                       72
Arc Segments                           423575

                                   TOLERANCES

Fuzzy   =               481.622 N          Dangle  =                 0.000 N
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                               COVERAGE BOUNDARY

Xmin =             -2299428.000            Xmax =              1542101.125
Ymin =               245955.734            Ymax =              2406483.750

                                     STATUS

The coverage has not been Edited since the last BUILD or CLEAN.

                          COORDINATE SYSTEM DESCRIPTION

Projection               ALBERS
Units                    METERS             Spheroid             CLARKE1866
Parameters:
1st standard parallel                                   55  0  0.000
2nd standard parallel                                   65  0  0.000
central meridian                                       -154  0  0.00
latitude of projection's origin                         50  0  0.000
false easting (meters)                                       0.00000
false northing (meters)                                      0.00000