Map of the Huron River Valley from Surveys made in 1907 by Gardner Stewart Williams [Map 5104]

Fleming Creek, 1907: Map of the Huron River Valley

Map of the Huron River Valley from Surveys made in 1906-07 by Gardner Stewart Williams [Map 5103]

Superior Pond, ca. 1906-1907: Map of the Huron River Valley

Map of the Huron River Valley from Surveys made in 1907 by Gardner Stewart Williams [Map 5102]

Leforge Road, 1907: Map of the Huron River Valley

Map of the Huron River Valley from Surveys made in 1907 by Gardner Stewart Williams [Map 5101]

Ypsilanti, 1907: Map of the Huron River Valley

Map of the Huron River Valley from Surveys made in 1905-1909, by Gardner Stewart Williams.

Ann Arbor, ca. 1905-1909: Map of the Huron River Valley, revised 5/11/1915

Land ownership map: 1669-1796.

Scale ca. 1:14,400.

[A survey of a plot in Lancaster and Northumberland counties bounded by the Chesapeake Bay, Rappahnnock River, and the Potomac River ] /

Relief shown by hachures.

The platt of Safford [i.e. Stafford] from the mouth of upper Machotich to the mouth of Chappawamsick /

Pen-and-ink on tracing paper, mounted on cloth.

Map of 1st. distrt. Campbell Co. Georgia : south of the Cherokee boundy. line /

Shows local topography, roads, and names of some residents.

Entiat Ranger DIstrict /

Relief shown by contours.

Olympic National Park, Washington /

Relief shown by shading and spot heights.

Incorporating Legacy Soil pH Databases into Digital Soil Maps

Soil data and reliable soil maps are imperative for environmental management. conservation and policy. Data from historical point surveys, e.g. experiment site data and farmers fields can serve this purpose. However, legacy soil information is not necessarily collected for spatial analysis and mapping such that the data may not have immediately useful geo-references. Methods are required to utilise these historical soil databases so that we can produce quantitative maps of soil propel-ties to assess spatial and temporal trends but also to assess where future sampling is required. This paper discusses two such databases: the Representative Soil Sampling Scheme which has monitored the agricultural soil in England and Wales from 1969 to 2003 (between 400 and 900 bulked soil samples were taken annually from different agricultural fields); and the former State Chemistry Laboratory, Victoria, Australia where between 1973 and 1994 approximately 80,000 soil samples were submitted for analysis by farmers. Previous statistical analyses have been performed using administrative regions (with sharp boundaries) for both databases, which are largely unrelated to natural features. For a more detailed spatial analysis that call be linked to climate and terrain attributes, gradual variation of these soil properties should be described. Geostatistical techniques such as ordinary kriging are suited to this. This paper describes the format of the databases and initial approaches as to how they can be used for digital soil mapping. For this paper we have selected soil pH to illustrate the analyses for both databases.

Coastal Survey Maps: From Historical Documents to Digital Databases

This paper describes the spatial data handling procedures used to create a vector database of the Connecticut shoreline from Coastal Survey Maps. The appendix contains detailed information on how the procedures were implemented using Geographic Transformer Software 5 and ArcGIS 8.3. The project was a joint project of the Connecticut Department of Environmental Protection and the University of Connecticut Center for Geographic Information and Analysis.

The uranium deposits of Big Indian Wash, San Juan County, Utah /

"September 29, 1954.

The uranium deposits of Big Indian Wash, San Juan County, Utah /

"January 30, 1953."