00669nam a22002051 4500 gs 13000251 DLC 20260227111314.0 770317s1912 dcuab f00010 eng c gs 13000251 U.S. Geol. Survey. Library (200)E no. 502 ak n-us-ak QE75 .B9 no. 502 Knopf, Adolph, 1882- The Eagle River region, southeastern Alaska, by Adolph Knopf. Washington, Govt. print. off., 1912. 61 p. 2 pl., 3 fold. maps (2 in pocket) diagrs. 24 cm. United States. Geological survey. Bulletin 502 Geology Alaska. 25247 25247