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351 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 21 out of 401947Image/StillImage
352 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 22 out of 401947Image/StillImage
353 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 23 out of 401947Image/StillImage
354 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 24 out of 401947Image/StillImage
355 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 25 out of 401947Image/StillImage
356 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 26 out of 401947Image/StillImage
357 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 27 out of 401947Image/StillImage
358 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 28 out of 401947Image/StillImage
359 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 29 out of 401947Image/StillImage
360 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 30 out of 401947Image/StillImage
361 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 31 out of 401947Image/StillImage
362 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 32 out of 401947Image/StillImage
363 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 33 out of 401947Image/StillImage
364 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 34 out of 401947Image/StillImage
365 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 35 out of 401947Image/StillImage
366 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 36 out of 401947Image/StillImage
367 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 37 out of 401947Image/StillImage
368 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 38 out of 401947Image/StillImage
369 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 39 out of 401947Image/StillImage
370 San Juan River survey, topography: San Juan River strip 518-400-12 sheet 40 out of 401947Image/StillImage
371 Scientific information in the decision to dam Glen Canyon1975Text
372 Sedimentation in Lake Powell1978Text
373 Shoreline ecology of Lake Powell1976Text
374 Shoreline surface materials and geological strata, Lake Powell1977Text
375 Some social consequences of boomtowns1977Text
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