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SP-399 SKYLAB EREP Investigations Summary

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FIGURE 6-16.-Portion 0f U.S. Geological Survey topographic map showing central Arizona. Thin black lines indicate boundaries of snow areas with differing reflectances as mapped from an S190B photograph; H, M, and L indicate high, medium, and low reflectance, respectively. Heavy black line indicates snow boundary as depicted on aerial survey snow chart.

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