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2000 Census County Subdivision Block Map
6
1990 Census County Block Map
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2000 Census County Block Map
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2010 Census County Block Map
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2007 Economic Census Map
4
2010 Census P.L. 94-171 County Block Map
4
7.5 Minute Series (Topographic)
3
Primary Care Case Management Primary Care Provider and Hospital List
3
Primary Care Provider and Hospital List: Metroplex
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Western United States 1:250,000
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How Healthy is the Upper Trinity River?: Biological and Water Quality Perspectives
This conference report contains discussions and papers from a symposium hosted at Texas Christian University, in Fort Worth, Texas, examining the ecological health of the Upper Trinity River, and the impacts of various human activity, such as agriculture, urbanization, and waste management. The papers cover the effect of water quality on urban rivers, long-term water quality trends in the Trinity River, solutions that may improve water quality in the river, as well as biological, agricultural and waste-water issues.
Date:
1990
Creator:
Jensen, Ric
Object Type:
Book
System:
The UNT Digital Library
Pre-Impoundment Estimations of Nutrient Loading to Ray Roberts Lake and Prediction of Post-Inundation Trophic Status
Excessive nutrient loading of natural and artificial lakes has led, in some systems, to plethoric algal and aquatic macrophyte growth which can result in aesthetic degradation and undesirable tastes and odors. It would be advantageous to have some indication of the potential trophic status of a reservoir before it is filled. An objective of this study was to assess the water quality and nutrient loading potential of the tributaries entering Ray Roberts Lake, a large reservoir located in north central Texas. Samples from a maximum of thirteen sites were collected on the Elm Fork, Trinity River, Isle duBois Creek, and five additional tributaries. Data were also collected during six storms, from atmospheric deposition collectors, and from soil-water microcosms. The relationship between watershed landuse and mean water nutrient concentrations was evaluated. Significant differences will exist between the two major arms of Ray Roberts Lake: Elm Fork, Trinity River and Isle duBois Creek. While the majority of the annual phosphorus and nitrogen load entering both tributaries is coming from overland flow, the proportion is higher in Isle duBois Creek. Point sources in the Elm Fork contribute a larger percentage of the bioavailable phosphorus, which is significantly greater than in Isle duBois Creek. …
Date:
May 1988
Creator:
Pillard, David Alan, 1958-
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Survey of Landowner Attitudes Toward the Construction of Lake Ray Roberts
Documentation of social impacts resulting from the construction of Lake Ray Roberts is to be incorporated into a two year post-impoundment study. Research objectives are to: 1) locate current residences of landowners and previous landowners who were displaced; 2) determine social impacts resulting from construction of Lake Ray Roberts; 3) document degree of satisfaction with current living conditions; 4) document landowners' degree of satisfaction associated with COE negotiations; 5) document landowners' observations. Landowners were identified by telephone and sent a mail-back questionnaire. Respondents were generally happy with current residences and communities. While courtesy and sufficient information were provided by the COE, respondents would have preferred for property settlements to be more consistent and timely.
Date:
August 1991
Creator:
Norris, Paula Sue
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
2000 Census County Block Map: Cooke County, Block 20
Parent map for Cooke County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:17,500.
Date:
2000
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
2000 Census County Block Map: Grayson County, Index
Index map for Grayson County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:88,456.
Date:
2000
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
1990 Census County Block Map (Recreated): Denton County, Index
Index map for Denton County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:87,409.
Date:
1990
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
2000 Census County Block Map: Denton County, Index
Index map for Denton County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:87,409.
Date:
2000
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
1990 Census County Block Map (Recreated): Grayson County, Block 32
Parent map for Grayson County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:12,500.
Date:
1990
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
2000 Census County Block Map: Denton County, Block 7
Parent map for Denton County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:10,000.
Date:
2000
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
2000 Census County Block Map: Grayson County, Block 32
Parent map for Grayson County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:12,500.
Date:
2000
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
2010 Census County Block Map: Grayson County, Index
Index map for Grayson County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:92,115.
Date:
2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Denton County, Index
Index map for Denton County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:76,763.
Date:
January 12, 2011
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Grayson County, Block 22
Parent map for Grayson County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Cooke County, Block 27
Parent map for Cooke County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date:
December 14, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
Primary Care Case Management Primary Care Provider and Hospital List: Metroplex, September 2011
List of Primary Care Case Management program approved primary care providers, hospitals, specialists, and family planning providers, located in the Dallas-Fort Worth Metroplex area.
Date:
September 2011
Creator:
Primary Care Case Management
Object Type:
Book
System:
The Portal to Texas History
2000 Census County Subdivison Block Map: Pilot Point-Aubrey CCD, Texas, Index
Index map for Pilot Point-Aubrey Census County Division, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:50,530.
Date:
2000
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
2000 Census County Subdivison Block Map: Gainesville Southeast CCD, Texas, Index
Index map for Gainesville Southeast Census County Division, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:38,242.
Date:
2000
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
2000 Census County Subdivison Block Map: Southwest Grayson CCD, Texas, Block 3
Parent map for Southwest Grayson Census County Division, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:20,000.
Date:
2000
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
2000 Census County Subdivison Block Map: Gainesville Southeast CCD, Texas, Block 4
Parent map for Gainesville Southeast Census County Division, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:17,500.
Date:
2000
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
Pilot Point Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1961
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Habitat Evaluation Procedures at Ray Roberts Lake: an Analysis of the Relationship with Ecological Indicators and a Study of Observer and Temporal Variability
Habitat Evaluation Procedure data gathered at Ray Roberts Lake in 1989 and 1990 were analysed for temporal variability, observer variability and relationships between Habitat Units (HUs) and species density/diversity. observer variability within a group was analysed by cluster analysis and bootstrapping. Five out of 36 sites showed significant differences in Habitat Suitability Index (HSI) values within the group. A nonparametric Mann-Whitney test was used to analyze temporal variability. One of 6 sites showed a significant difference in HSI values between years. Using Spearman's Rank Correlation Coefficient, a correlation was found between indicator species density and HUs. No significant correlation was indicated between species diversity and HUs.
Date:
December 1993
Creator:
Wattrus, Jane M. (Jane Marie)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Responsibility of the Secondary School for the Social Development of its Students
The problem in this study is twofold. First, there will be an attempt to determine the values that organizations in the secondary school have for the development of its students. Second, a survey will be made of the four-year accredited high schools in District Five of Texas to determine how and to what extent they are realizing their responsibilities in this respect.
Date:
1947
Creator:
Baxter, Billie Otella
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Occurrence, Availability, and Chemical Quality of Ground Water in the Cretaceous Aquifers of North-Central Texas: Volume 2
The second volume of a two part report on the Creataceous aquifers in Texas. This volume contains information on water wells, water levels, and chemical analyses.
Date:
July 1982
Creator:
Nordstrom, Philip L.
Object Type:
Report
System:
The Portal to Texas History
Water Level and Water-Quality Data From Observation Wells in Northeast Texas
This Report presents quantitative and qualitative information concerning ground water of Texas, from observations in wells of 20 county areas in Northeast Texas by Texas Water Development Board and U.S Geological Survey.
Date:
February 1976
Creator:
Taylor, Howard D.
Object Type:
Report
System:
The Portal to Texas History