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<br />
<br />LEGEND
<br />FLOOD PLAIN LIMITS
<br />
<br />II'
<br />~I~I~~'~ ~L~~AR
<br />
<br />~.. .
<br />
<br />J 500 YEAR
<br />FLOOD
<br />
<br />GROUND ELEVATION IN FEET ____70 --'
<br />MEAN SEA LEVEL DATUM 90_____
<br />CONTOUR, INTERVAL 2_0' ~
<br />CROSS SECTION S . . S
<br />DB
<br />CROSS SECTION CONTINUED 0'8' ....
<br />-"'-
<br />PERENNIAL $TREAM _"'-
<br />PERMANENT BENCH MARK ~
<br />HORIZONTAL CONTROL 8-
<br />VERTICAL CONTROL 0
<br />
<br />PHOTO CENTER
<br />GRID POIN T
<br />POWER POLE
<br />FENCE
<br />
<br />~
<br />x
<br />
<br />o
<br />
<br />-,-
<br />
<br />COLORADO SOUTH ZONE STATE PLANE COORDIN-
<br />ATES TRIANGULATION STATIONS
<br />NAME ORDER COORDINATES
<br />EIGHT 1ST V= 187,330.46
<br />x= 1.563.897.87
<br />PAGOSA 2ND Y' 222,26B_BI
<br />x= 1,559,704.75.
<br />HaTT 2ND y= 231,558.03
<br />X = 1,589,234.02
<br />O'SANNON 3RD Y = 246,596.70
<br />X = 1,588.330.40
<br />HORIZONTAL CONTROL BASED ON 1927 NORTH AMERICAN
<br />DATUM, COLORADO COORDINATE SYSTEM SOUTH ZONE.
<br />VERTICAL CONTROL BASED ON U.S.C. a 6,$.1929 SEA
<br />LEVEL DATUM.
<br />TOPOGRAPHY ON THIS MAP COMPLIES WITH NATIONAL MAP
<br />ACCURACY STANDARDS.
<br />COMPILATION BY PHOTOGRAMMETRIC METHODS FROM 6"
<br />C. F. L. VERTICAL AERIAL PHOTOGRAPHY FLOWN
<br />OCTOBER 22, 1975.
<br />PHOTOGRAMMETRY BY
<br />NELSON, HALEY, PATTERSON AND QUIRK. ENGINEERING
<br />CONSULTANTS, 2021 CLUBHOUSE DRIVE, GREELEY, COLO.
<br />
<br />FLOOD HAZARD AREAS ARE FOR EXISTING CONDlTIONS-
<br />OCTOBER 1975.
<br />FLOOD AREA OUTLINES WERE DETERMINED BY MATCHING
<br />WATER SURFACE PROFILE ELEVATIONS WITH TOPOGRAPHY.
<br />
<br />REVISION
<br />
<br />DATE
<br />
<br />BY
<br />
<br />U, S. DEPARTMENT OF AGRICULTURE
<br />SOIL CONSERVATION SERVICE
<br />FLOOD HAZARD AREAS
<br />SAN JUAN RIVER AND Mc CASE CREEK
<br />PAGOSA SPRINGS
<br />ARCHULETA COUNTY, COLORADO
<br />
<br />200
<br />
<br />200 400 600
<br />~
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<br />o
<br />
<br />SCALE
<br />
<br />IN
<br />
<br />FEET
<br />
<br />SHEET I OF 9
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