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<br />9. U.S. Department of the Army, Corps of Engineers, Sacramento District,
<br />Internal Memorandum, Basalt, Colorado Hydrology, August 1976
<br />
<br />10. U.S. Water Resources Council, ~Guidelines for Determining Flood
<br />Flow Frequency., Bulletin l7A,' 1978
<br />
<br />11. U.S. Department of the Army, COrps of Engineers, Hydrologic Engineer-
<br />ing Center, Computer Program 723-X6-L202A, HEC-2 Water-Surface
<br />Profiles, Davis, California, March 1982, with updates
<br />
<br />12. Cooper Aerial Survey Company, Topographic Maps, Scale 1.1,200 and
<br />1.600, Contour Interval 2 feet. Aspen, Colorado
<br />
<br />13. Bell Mapping Company, Topographic Maps, Scale 1.2,400, Contour
<br />Interval 2 feet. Basalt Area,' Eagle and pitkin Counties, Colorado
<br />(October 19, 1981)
<br />
<br />14. Centennial Engineering, Inc., ,Topographic Maps, Scale 1.1,200,
<br />Contour Interval 2 feet. Bruah Creek Road Improvement project,
<br />Colorado (May 1982)
<br />
<br />15. Wright-McLaughlin Engineers, Flood Plain Information, Roaring Fork
<br />and Fryingpan Rivers, Eagle county, Colorado, February 1978
<br />
<br />16. Wright-McLaughlin Engineers, Flood Plain Information, Crystal
<br />River and Coal Creek, prepare4 for Pitkin County and the Colorado
<br />Water Conservation Board, 1979
<br />
<br />17. Air Photo Surveys, Aerial photographs, Basalt, ColoradO, Scale
<br />1.7,200, November 11, 1975
<br />
<br />18. Benchmark Mapping Services, TQpographic Maps, Scale 1:2,400,
<br />Contour Interval 2 feet. Crystal River and Coal Creek, Colorado
<br />(May 19, 1978)
<br />
<br />19. Air Photo Surveys, Inc., Topographic Maps, Scale 1.4,800, Contour
<br />Interval 5 feet. Roaring Fork Valley Area, Colorado (1973)
<br />
<br />20. Falcon Air Maps, Inc., Topographic Maps, Scale 1.2,400, Contour
<br />IntervalS feet. Aspen Area, , Colorado (1964) modified by the U.S.
<br />Army Corps of Engineers (1973)
<br />
<br />21. Nichols Associates, Inc., ToPographic Maps, Scale 1.2,400, Contour
<br />IntervalS feet. pitkin County Area, Colorado (July 1984)
<br />
<br />22. U.S. Department of the Interipr, Geological Survey, 7.5-Minute
<br />Series Topographic Maps, Scale 1:24,000, Contour Interval 40 feet.
<br />Highland peak, Colorado (1960)
<br />
<br />23. U.S. Department of the Interior, Geological Survey, 7.5-Minute
<br />Series Topographic Maps. Scal~ 1.24,000, Contour Interval 2 feet.
<br />Basalt, Colorado (1961)
<br />
<br />48
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