"This report profiles the demographic and economic trends within the Upper North Santiam Canyon (UNSC). We describe the economic structure and determine the export base of the UNSC. We estimate the economic impacts of a water level in the Detroit Lake that is too low for the moorages to operate...
This thesis examines prehistoric land use patterns of the entire North Santiam subbasin, located on the western slopes of the Oregon Cascade Range. The objective of this analysis is three-fold: 1) to contribute to reconstructing the cultural chronology of the area; 2) to address the use of raw material by...
Landforms sculpted by mass movements comprise much of the landscape in the Middle Santiam study area. Bedrock in the area is
mostly basalt and andesite flows and varied volcaniclastic rocks of the Little Butte Volcanic Series of Oligocene and early Miocene age, unconforniably overlain by andesite flows and tuffs of...
The extensive reduction in adult Pacific lamprey (Entosphenus tridentatus) counts at many hydroelectric dams in the northwestern USA signals a substantial decline in lamprey numbers across the entire region in the past 40 to 50 years. Among the many potential causes of this decline, obstruction of migration routes has likely...