Filters: Contacts: University of California, Berkeley (X)
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Saeltzer Dam was removed from Clear Creek in October 2000 to restore ten miles of upstream habitat access to spring run chinook salmon and steelhead trout. Since the dam removal, an estimated 50,000 cubic yards of sediment has eroded from the banks and channel at the former dam site. Some of the eroded sediment has been deposited downstream on Renshaw’s Riffle, a stretch formerly known for its spawning habitat, aggrading the bed up to 2.5 ft. To evaluate characteristics of the sediment deposition, we performed roughly 60 pebble counts and created a facies map for a 1.43 mi stretch downstream of the former dam site. We created maps in ArcMap GIS using the data to depict changes in gravel bar location, the d50 (the...
Categories: Publication;
Types: Citation
Elk within the Clarks Fork herd migrate though some of the most rugged and remote terrain in the lower 48 states. The herd, which numbers around 3,000, winters in the Sunlight Basin and the Absaroka foothills just west of Cody, WY. Winter ranges are a mix of sagebrush hills and lodgepole pine forests, within expansive private ranchlands. During migration, animals travel an average one-way distance of 33 miles, with some animals migrating as far as 67 miles. Spring migrations off of winter range head west towards Yellowstone National Park, up several drainages that flow out of the Absaroka Mountains, including the Clarks Fork of the Yellowstone, Crandall Creek, and smaller creeks to the south. Summer ranges consist...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Montana,
United States,
Wyoming,
Yellowstone National Park North,
animal behavior,
The Cody elk herd migrates across rugged country on the eastern side of the Absaroka Mountains near Cody, WY. This large herd of 6,000-7,000 animals winters in foothill habitat to the south and west of Cody. There are three core winter areas, namely the valleys formed by the North and South Fork of the Shoshone River and the headwaters of the Greybull River north to Meeteetse creek. In spring, the elk that winter along the North Fork of the Shoshone generally follow the river west towards the park, some of them branching up Eagle Creek and other tributaries. The elk that winter in the South Fork of the Shoshone follow it upstream in spring, eventually heading west up Ishawooa Creek and into the Thorofare and Yellowstone...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Cody,
United States,
Wyoming,
animal behavior,
migration (organisms),
In October 2000, Secretary of the Interior Bruce Babbitt and California Secretary of Resources Mary Nichols joined in a symbolic ceremony to begin the removal of the 90-year old Saeltzer Dam on Clear Creek in northwestern California, a long-known barrier to fish migration. The removal of Saeltzer Dam was intended to benefit populations of federally listed spring-run chinook salmon and steelhead trout by providing access to approximately 10 miles of upstream habitat. In April of 2003, we visited the former site of Saeltzer Dam. Through surveys, sketch maps, and photographs of the area immediately upstream of the former dam site, we identified a number of changes to creek morphology since removal of the dam and a...
Categories: Publication;
Types: Citation
The 1993 Yukon Land Claims Treaty presumes new types of cooperative arrangements between First Nation, Territorial, and Federal governments to address pervasive problems of aboriginal inequity. The explicit focus is the development of First Nation sovereignty, authority, and economic self-sufficiency within Canadian federalism. These arrangements have developed in a few situations but the overall pattern is towards diminished intergovernmental cooperation, undermining the extent to which treaties are actually achieving the presumed intentions. Why is this so? The reasons arise in the comprehensive forces within and upon the Canadian federation. Opportunities for First Nation self-determination formed at a time of...
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