Reconnaissance map of Chitina Quadrangle, Copper River Region, Alaska / Alfred H. Brooks, geologist in charge of division ; topography by T.G. Gerdine ... [et al.]
1914|Brooks, Alfred H.; Gerdine, T. G.1:250 000
International Boundary, Along the 141st Meridian, Sheet No.32
1914|International Boundary Commission1:62 500
International Boundary, Along the 141st Meridian, Sheet No. 31
1914|International Boundary Commission1:62 500
International Boundary, Along the 141st Meridian, Sheet No. 29
1914|International Boundary Commission1:62 500
International Boundary, Along the 141st Meridian, Sheet No.28