In 1999, we made an atlas of 54 index reaches in the Snoqulamie basin. Following are the pages for reach 4.


Click on the image for the gif file, or here for the tif file


Click on the image for the gif file, or here for the tif file
Note on file sizes: at 300 pixels/inch, arcpress converted an ARC/INFO .gra file into a tif file of 22,534,920 bytes. The only option for color tiffs was uncompressed 24-bit color. The image was imported into gimp, and exported with packed bits at 3,727,202 bytes. GIMP then converted from 24-bit color to indexed color; there are only 17 colors. The resulting files were 7,522,916 bytes unpacked, and 449,130 bytes packed. With proprietary LZW compression, the size was 395,902 bytes. A gif file was smallest at 202,960 bytes. A jpeg file (at .75 quality) was 732,465 bytes, and was visibly lossy.

and here are some old pages

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