Watershed Report
Little Vache Grasse Creek-Arkansas River
1111020101


The Center for Advanced Spatial Technologies at the University of Arkansas has developed the Arkansas Automated Reporting and Mapping System with funding from the Arkansas 85th General Assembly through the Arkansas Natural Resource Commission.
The 308 ten-digit watershed units and the 1556 twelve-digit watershed units were delineated by the Natural Resources Conservation Service, a division of the US Department of Agriculture.
For all watersheds that cross the Arkansas border, only the Arkansas portion of the watershed was used for mapping and statistical reporting.

Watershed Summary (10 Digit HUC)

Little Vache Grasse Creek-Arkansas River
 (1111020101)

Area Summary
Area - Square Miles...........................:      153.25
Area - Acres..................................:    99229.35

Elevation Summary
                                                     Meters         Feet
Elevation Maximun.............................:      283.00       928.00
Elevation Minimum.............................:      104.00       341.00
Elevation Average.............................:      148.00       485.00

Population Summary
Population Estimate for 1990..................:    19963.00
Population Density for 1990 (persons/sq mi)...:      130.26
Population Estimate for 2000..................:    22893.00
Population Density for 2000 (persons/sq mi)...:      149.38
Population Percent Change.....................:       14.68%

Population Density Summary

     Density   Area 1990   % of Total   Area 2000   % of Total   % Change
     0             55.25       36.05%       46.84       30.56%    -15.22%
     0-5            3.38        2.21%       16.28       10.62%    381.66%
     5-10          10.51        6.86%        5.76        3.76%    -45.20%
     10-25         34.97       22.82%       23.31       15.21%    -33.34%
     25-50          9.02        5.89%       15.86       10.35%     75.83%
     50-100        12.82        8.37%       15.12        9.87%     17.94%
     100-500       21.35       13.93%       23.33       15.22%      9.27%
     500-1000       2.41        1.57%        2.46        1.61%      2.07%
     > 1000         3.78        2.47%        4.52        2.95%     19.58%






Sub-Watershed Summary (12 Digit HUC) Upper Rock Creek (111102010101) Area Summary Area - Square Miles...........................: 30.30 Area - Acres..................................: 19618.34 Elevation Summary Meters Feet Elevation Maximun.............................: 283.00 928.00 Elevation Minimum.............................: 118.00 387.00 Elevation Average.............................: 152.00 499.00 Population Summary Population Estimate for 1990..................: 12716.00 Population Density for 1990 (persons/sq mi)...: 419.67 Population Estimate for 2000..................: 14714.00 Population Density for 2000 (persons/sq mi)...: 485.61 Population Percent Change.....................: 15.71% Population Density Summary Density Area 1990 % of Total Area 2000 % of Total % Change 0 1.87 6.17% 6.97 23.00% 272.73% 0-5 .00 -.--% .00 -.--% -.--% 5-10 .00 -.--% .00 -.--% -.--% 10-25 8.46 27.92% .15 .50% -98.23% 25-50 .78 2.57% 3.11 10.26% 298.72% 50-100 5.32 17.56% 6.27 20.69% 17.86% 100-500 9.92 32.74% 9.31 30.73% -6.15% 500-1000 1.37 4.52% 1.39 4.59% 1.46% > 1000 2.63 8.68% 3.13 10.33% 19.01%

Upper Little Vache Grasse Creek (111102010102) Area Summary Area - Square Miles...........................: 17.16 Area - Acres..................................: 11109.30 Elevation Summary Meters Feet Elevation Maximun.............................: 209.00 686.00 Elevation Minimum.............................: 113.00 371.00 Elevation Average.............................: 144.00 472.00 Population Summary Population Estimate for 1990..................: 850.00 Population Density for 1990 (persons/sq mi)...: 49.53 Population Estimate for 2000..................: 969.00 Population Density for 2000 (persons/sq mi)...: 56.47 Population Percent Change.....................: 14.00% Population Density Summary Density Area 1990 % of Total Area 2000 % of Total % Change 0 12.01 69.99% 13.68 79.72% 13.91% 0-5 .00 -.--% .42 2.45% -.--% 5-10 1.23 7.17% .00 -.--% -.--% 10-25 .00 -.--% .15 .87% -.--% 25-50 .12 .70% .23 1.34% 91.67% 50-100 2.55 14.86% .00 -.--% -.--% 100-500 .67 3.90% 2.15 12.53% 220.90% 500-1000 .27 1.57% .20 1.17% -25.93% > 1000 .18 1.05% .20 1.17% 11.11%

Mill Creek-Arkansas River (111102010106) Area Summary Area - Square Miles...........................: 17.78 Area - Acres..................................: 11512.89 Elevation Summary Meters Feet Elevation Maximun.............................: 276.00 905.00 Elevation Minimum.............................: 108.00 354.00 Elevation Average.............................: 206.00 676.00 Population Summary Population Estimate for 1990..................: 225.00 Population Density for 1990 (persons/sq mi)...: 12.65 Population Estimate for 2000..................: 256.00 Population Density for 2000 (persons/sq mi)...: 14.40 Population Percent Change.....................: 13.78% Population Density Summary Density Area 1990 % of Total Area 2000 % of Total % Change 0 2.28 12.82% 2.42 13.61% 6.14% 0-5 .67 3.77% .67 3.77% .00% 5-10 2.90 16.31% 1.94 10.91% -33.10% 10-25 11.76 66.14% 10.92 61.42% -7.14% 25-50 .22 1.24% 1.98 11.14% 800.00% 50-100 .26 1.46% .16 .90% -38.46% 100-500 .00 -.--% .00 -.--% -.--% 500-1000 .00 -.--% .00 -.--% -.--% > 1000 .00 -.--% .00 -.--% -.--%

Courthouse Slough-Arkansas River (111102010107) Area Summary Area - Square Miles...........................: 24.36 Area - Acres..................................: 15775.24 Elevation Summary Meters Feet Elevation Maximun.............................: 244.00 800.00 Elevation Minimum.............................: 104.00 341.00 Elevation Average.............................: 120.00 394.00 Population Summary Population Estimate for 1990..................: 447.00 Population Density for 1990 (persons/sq mi)...: 18.35 Population Estimate for 2000..................: 548.00 Population Density for 2000 (persons/sq mi)...: 22.50 Population Percent Change.....................: 22.60% Population Density Summary Density Area 1990 % of Total Area 2000 % of Total % Change 0 17.20 70.61% 8.56 35.14% -50.23% 0-5 .16 .66% 6.27 25.74% 3818.75% 5-10 .00 -.--% .33 1.35% -.--% 10-25 3.27 13.42% 3.65 14.98% 11.62% 25-50 .77 3.16% 2.13 8.74% 176.62% 50-100 1.85 7.59% 2.21 9.07% 19.46% 100-500 1.11 4.56% 1.20 4.93% 8.11% 500-1000 .01 .04% .01 .04% .00% > 1000 .00 -.--% .00 -.--% -.--%

Onion Creek-Arkansas River (111102010105) Area Summary Area - Square Miles...........................: 23.73 Area - Acres..................................: 15364.95 Elevation Summary Meters Feet Elevation Maximun.............................: 254.00 833.00 Elevation Minimum.............................: 112.00 367.00 Elevation Average.............................: 162.00 531.00 Population Summary Population Estimate for 1990..................: 466.00 Population Density for 1990 (persons/sq mi)...: 19.64 Population Estimate for 2000..................: 576.00 Population Density for 2000 (persons/sq mi)...: 24.27 Population Percent Change.....................: 23.61% Population Density Summary Density Area 1990 % of Total Area 2000 % of Total % Change 0 3.97 16.73% 3.06 12.90% -22.92% 0-5 1.08 4.55% .00 -.--% -.--% 5-10 3.54 14.92% 3.48 14.66% -1.69% 10-25 7.87 33.16% 7.97 33.59% 1.27% 25-50 6.03 25.41% 6.52 27.48% 8.13% 50-100 1.15 4.85% 2.61 11.00% 126.96% 100-500 .05 .21% .06 .25% 20.00% 500-1000 .00 -.--% .00 -.--% -.--% > 1000 .00 -.--% .00 -.--% -.--%

Little Vache Grasse Creek Outlet-Arkansas River (111102010104) Area Summary Area - Square Miles...........................: 19.12 Area - Acres..................................: 12382.44 Elevation Summary Meters Feet Elevation Maximun.............................: 180.00 590.00 Elevation Minimum.............................: 107.00 351.00 Elevation Average.............................: 124.00 407.00 Population Summary Population Estimate for 1990..................: 3218.00 Population Density for 1990 (persons/sq mi)...: 168.31 Population Estimate for 2000..................: 3584.00 Population Density for 2000 (persons/sq mi)...: 187.45 Population Percent Change.....................: 11.37% Population Density Summary Density Area 1990 % of Total Area 2000 % of Total % Change 0 12.15 63.55% 8.75 45.76% -27.98% 0-5 .00 -.--% 4.82 25.21% -.--% 5-10 2.84 14.85% .00 -.--% -.--% 10-25 1.77 9.26% .25 1.31% -85.88% 25-50 .00 -.--% .36 1.88% -.--% 50-100 .09 .47% 2.52 13.18% 2700.00% 100-500 .84 4.39% .91 4.76% 8.33% 500-1000 .51 2.67% .37 1.94% -27.45% > 1000 .95 4.97% 1.18 6.17% 24.21%

Mays Branch (111102010103) Area Summary Area - Square Miles...........................: 20.80 Area - Acres..................................: 13466.19 Elevation Summary Meters Feet Elevation Maximun.............................: 168.00 551.00 Elevation Minimum.............................: 112.00 367.00 Elevation Average.............................: 132.00 433.00 Population Summary Population Estimate for 1990..................: 2040.00 Population Density for 1990 (persons/sq mi)...: 98.08 Population Estimate for 2000..................: 2246.00 Population Density for 2000 (persons/sq mi)...: 107.98 Population Percent Change.....................: 10.10% Population Density Summary Density Area 1990 % of Total Area 2000 % of Total % Change 0 5.78 27.79% 3.40 16.35% -41.18% 0-5 1.47 7.07% 4.09 19.66% 178.23% 5-10 .00 -.--% .00 -.--% -.--% 10-25 1.83 8.80% .21 1.01% -88.52% 25-50 1.10 5.29% 1.54 7.40% 40.00% 50-100 1.60 7.69% 1.35 6.49% -15.63% 100-500 8.77 42.16% 9.70 46.63% 10.60% 500-1000 .24 1.15% .50 2.40% 108.33% > 1000 .02 .10% .01 .05% -50.00%