Geophysical, Sedimentological, and Photographic Data from the John Day Reservoir, Washington and Oregon: Data Archive and Preliminary Discussion USGS Open-File 2004-1014 HOME | CONTENTS | GEOLOGIC DISCUSSION | DATA/GIS | METADATA | REFERENCES | CONTACTS |
Table of Contents:OF 2004-1014Disc Contents
Geologic
|
Figure 7. The top of a bar shown in a pre-dam aerial photo-mosaic (A), also shows on the sidescan-sonar imagery (B). Click in figure for larger image. The top of a bar shown in a pre-dam aerial photo-mosaic (A), also shows on the sidescan-sonar imagery (B). The presence of roads and causeways on both images suggests there has been little change since the reservoir was filled. Location shown in Figure 3. |