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- Map label: GAITHERSBURG,MD 39 07 30 77 15 40000 NHAP GPM,48000,001 1
- there were 40 items read from the header
- [ 3] planimetric reference system: 1
- [ 8] elevation measurement units code: 2
- [10] ground coordinates
- NW (305840.963269, 4346724.198628) NE (316628.602096, 4346463.483537)
- SW (305496.534500, 4332850.456288) SE (316303.331977, 4332589.976188)
- Accuracy code: 1
- Spatial Resolution: 30.000000, 30.000000, 1.000000
- [15] map size is 1 x 371
- Using vertical exaggeration of: 1.000000
- number of rows 471, number of columns 371
-