Tallahatchie -- Cataloging Unit 08030202

• Yazoo Accounting Unit 080302
  
• Lower Mississippi - Yazoo Subregion 0803
  
• Lower Mississippi Region 08 (There are 82 cataloging units in this region.)
  The state composition by area is 100.0% Mississippi.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 2726.4 km² ( 1053.1 mi² ) [% in USA = 40.45, % in Region = 47.56]
  The area from the USGS is 1010 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1028)

  IV. Elevation Analysis

  This analysis is based on 1088385 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 59.7 m ( 195.9 ft ) [% in USA = 9.76, % in Region = 50.00]
  The elevation standard deviation is 23.4 m ( 76.8 ft ) [% in USA = 14.68, % in Region = 69.51]
  The coefficient of variation is 39.2 %.
  The vertical relief is 119.0 m ( 390.4 ft ) [% in USA = 12.17, % in Region = 62.20]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	33.0	42.0	44.0	45.0	47.0	48.0	50.0	56.0	91.0	97.1	152.0
  feet	108.3	137.8	144.4	147.6	154.2	157.5	164.0	183.7	298.6	318.6	498.7

  

  V. Map Line Analysis

  Note- percentiles are for the feature density, not for the raw total lengths.
  

  line type	km	mi	km/km²	mi/mi²	% in USA	% in Region
  Perennial Shoreline	402.7	250.3	0.148	0.238	71.39	50.00
  Intermittent Shoreline	1.8	1.1	0.001	0.001	47.94	50.00
  Perennial Streams	774.9	481.6	0.284	0.457	54.05	45.12
  Intermittent Streams	1863.6	1158.2	0.684	1.100	86.78	79.27
  Canals	564.5	350.8	0.207	0.333	97.16	79.27
  1° roads	32.1	19.9	0.012	0.019	57.27	51.22
  2° roads	84.5	52.5	0.031	0.050	58.41	45.12
  3° roads	246.1	152.9	0.090	0.145	69.64	21.95
  4° roads	4042.7	2512.6	1.483	2.386	77.74	91.46
  Total Roads	4405.4	2737.9	1.616	2.600	75.89	86.59
  Railroads	160.0	99.5	0.059	0.094	65.85	60.98
  Pipes and Powerlines	126.8	78.8	0.047	0.075	67.60	40.24

  
  Of the natural water in this HUC, 61.30% (by length) is intermittent [% in USA = 62.01, % in Region = 79.27]

  VI. Other sites

  • EPA- Surf Your Watershed - Index of Watershed Indicators
  • USGS- Science in Your Watershed - Selected Realtime Streamflow Stations
  • CTIC- Known Your Watershed

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  1999 SEPT 4, Last updated on 2003 JAN 23
  
  D.L. Gustafson, dlg@rapid.msu.montana.edu