White River Falls Fish Passage Project, Tygh Valley, Oregon : Final Technical Report, Volume II, Appendix A, Fisheries Habitat Inventory.

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Stream habitat inventories on 155 stream miles in the White River drainage on the Mt. Hood National Forest are summarized in this report. Inventory, data evaluation, and reporting work were accomplished within the framework of the budgetary agreements established between the USDA Forest Service, Mt. Hood National Forest, and the Bonneville Power Administration, in the first 2 years of a multiyear program. One hundred forty-two stream miles of those inventoried on the Forest appear suitable for anadromous production. The surveyed area appears to contain most or all of the high quality fish habitat which would be potentially available for anadromous production if access is provided above the White River Falls below the Forest boundary. About 34 stream miles would be immediately accessible without further work on the Forest with passage at the Falls. Seventy-two additional miles could be made available with only minor (requiring low investment of money and planning) passage work further up the basin. Thirty-six miles of potential upstream habitat would likely require major investment to provide access.