Photographs & Maps

A topographic map of the Walker Branch Watershed shows elevation change, boundaries, and streams.
Topographic Map
A black-and-white map shows the different types of soil found across the Walker Branch Watershed.
Soils Map

This Walker Branch Watershed soils map was compiled based on studies by D. A. Lietzke. The reference grid is ORNL coordinates with a nominal spacing of 264 feet. The contour interval is 10 feet. This map is explained further in the following report:

Lietzke, D. A. 1994. Soils of Walker Branch Watershed. ORNL/TM-11606. Oak Ridge National Laboratory, Oak Ridge, Tennessee.

An aerial image shows the borders of the Walker Branch Watershed, outlined in yellow.
Aerial Photograph of the Watershed

This aerial photograph was taken at an altitude of 7200 feet on 9 Apr 1993. The watershed boundaries are shown. Clearings within the boundaries of the watershed are precipitation and deposition monitoring stations.

An aerial photo shows the location of several facilities, streams, and experiments across the Walker Branch Watershed.
Aerial Photograph Showing Facility Locations

The watershed boundaries and the locations of key experimental facilities are shown.

A black-and-white map shoes the location of a number of forest inventory plots and streams across the Walker Branch Watershed.
Forest Inventory Plots

This map shows the location of forest inventory plots established in 1967 on Walker Branch Watershed. Remeasurement of the plots was performed in 1970, 1973, 1979, 1983, 1991, 1997, and 2006.

The photo shows a stream in a wooded area, taken in late fall or winter.
Spring Canopy Closure Above Stream

This series of photos (by B. J. Roberts) presents a time sequence of spring leafout along the West Fork. (30 March to 27 April 2005)

A black-and-white map shows the land-use history on the Walker Branch Watershed, including pasture, homesites, and crops.
Historical Land Use

The land use history of Walker Branch Watershed is based on 1935 aerial photographs and other records including interviews with previous residents.

Dale, V.H., L.K. Mann, R.J. Olson, D.W. Johnson, and K.C. Dearstone. 1990. The long-term influence of past land use on the Walker Branch forest. Landscape Ecology 4: 211-224.

An aerial photo shows scattered fields and roads around the Watershed.
Photographs – Historical

Photographs for the Walker Branch Watershed research area from 1935 through 1998.