North Bosque -- Cataloging Unit 12060204

• Middle Brazos-Bosque Accounting Unit 120602
  
• Middle Brazos Subregion 1206
  
• Texas-Gulf Region 12 (There are 122 cataloging units in this region.)
  The state composition by area is 100.0% Texas.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 3162.7 km² ( 1221.6 mi² ) [% in USA = 50.17, % in Region = 44.26]
  The area from the USGS is 1240 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 449)

  IV. Elevation Analysis

  This analysis is based on 1263712 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 325.6 m ( 1068.2 ft ) [% in USA = 41.78, % in Region = 63.11]
  The elevation standard deviation is 73.4 m ( 240.8 ft ) [% in USA = 48.46, % in Region = 74.59]
  The coefficient of variation is 22.5 %.
  The vertical relief is 349.0 m ( 1145.0 ft ) [% in USA = 44.53, % in Region = 71.31]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	138.0	219.1	259.4	288.9	308.9	334.0	350.0	367.0	395.6	423.2	487.0
  feet	452.8	718.8	851.0	947.8	1013.4	1095.8	1148.3	1204.1	1297.9	1388.4	1597.7

  

  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	211.9	131.7	0.067	0.108	42.97	45.08
  Intermittent Shoreline	0.7	0.4	0.000	0.000	36.38	18.85
  Perennial Streams	458.2	284.8	0.145	0.233	31.50	54.92
  Intermittent Streams	1091.9	678.6	0.345	0.556	50.40	57.38
  Canals	0.0	0.0	0.000	0.000	35.62	41.80
  1° roads	3.8	2.4	0.001	0.002	41.78	31.97
  2° roads	107.6	66.9	0.034	0.055	63.15	54.10
  3° roads	227.1	141.1	0.072	0.116	61.44	86.89
  4° roads	4242.1	2636.5	1.341	2.158	68.02	32.79
  Total Roads	4580.6	2846.9	1.448	2.330	65.56	38.52
  Railroads	86.3	53.6	0.027	0.044	36.38	34.43
  Pipes and Powerlines	192.4	119.5	0.061	0.098	79.54	83.61

  
  Of the natural water in this HUC, 61.98% (by length) is intermittent [% in USA = 62.72, % in Region = 49.18]

  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