GIS data file contains the following records:

     265   9036
     383   27306
     545   401
     704   1500
     855   26530
    1011   8950
    1182   25468
    1346   1261
    1479   13210
    1643   32527
    1806   34817
    1961   34011
    2125   6259
    2289   26855
    2449   6362
    2610   5416
    2785   13714
    2942   12079
    3111   30720
    3274   10858
    3437   25663
    3602   3334
    3784   3516
    3938   36430
    4095   34588
    4261   30578
    4423   12398
    4587   5971
    4748   3520
    4904   34867
    5059   22057
    5178   26990
    5340   27265
    5499   3798
    5667   8984
    5833   9045
    6000   26361
    6156   32612
    6313   11803
    6438   9481
    6610   10138
    6733   5075
    6899   1448
    7064   32341
    7225   23946
    7396   10173
    7557   10534
    7728   25698
    7889   11432
    8051   8890
    8211   35887
    8363   21596
    8532   25947
    8691   4499
    8862   5970
    8980   32150
    9131   9803
    9296   8080
    9458   12758
    9617   11397
    9794   25452
    9974   23988

1: show_elevation  	5178
   4593
2: show_longitude  	8363
   109d 8m 56s West
3: show_elevation  	7889
   6781
4: show_elevation  	16
   Unaligned offset
5: show_elevation  	6438
   5712
6: show_name  	-245
   Offset is not positive
7: show_longitude  	7557
   109d 2m 24s West
8: show_longitude  	3938
   109d 5m 4s West
9: show_longitude  	8211
   109d 7m 31s West
10: show_elevation  	8051
   5348
11: show_name  	7728
   Apache Creek
12: show_name  	855
   Blue River
13: show_elevation  	5340
   7510
14: show_name  	6313
   Stateline Dam
15: show_latitude  	10567
   Offset too large
16: show_latitude  	3111
   33d 24m 42s North
17: show_name  	2449
   Jaralosa Draw
18: show_longitude  	6899
   108d 55m 34s West
19: quit  	
   Exiting