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50 pp. Bookmarks supplied by UO. Includes maps and figures. Adopted January 31, 1996; published March, 1996. Captured May 12, 2008.
268 pp. Bookmarks supplied by UO. Includes figures. Published October 10, 2005. Captured May 15, 2008.
44 pp. Bookmarks supplied by UO. Includes figures. Published May, 2003. Captured May 16, 2008.
212 pp. OCR and bookmarks supplied by UO. Maps, table. Adopted June 24, 1998. Captured November 25, 2008.
182 pp. OCR and bookmarks supplied by UO. Maps, tables, figures. Adopted July 17, 1991. Captured November 25, 2008.
39 pp. OCR and bookmarks supplied by UO. Map. Adopted October 1, 1980. Captured December 1, 2008.
111 pp. OCR and bookmarks supplied by UO. Maps, charts, tables, illus. Most recent activity 1994, per Web site. Captured December 1, 2008.
20 pp. Maps, figures, tables. Published March 14, 2005. Captured December 2, 2008.
50 pp. Bookmarks supplied by UO. Maps, charts, tables. Published October, 2005. Captured December 2, 2008.
45 pp. Maps, tables, charts. Published August, 2000. Captured December 2, 2008.