Twenty-year Development Plan for the S.P.A. (Southwestern Power Administration)1945-01-01unknownhttp://rightsstatements.org/vocab/NKC/1.0/enghttp://congressarchives.org/record/CAC_CC_053_4_0000_1_108Create a concise and logical summary using the title from the TITLE column and the text in the summary. The title is Coverage Map by Southwestern Power Administration. This map illustrates existing power lines and proposed S.P.A. lines. Dimensions: Not specified.