postcard of "Keystone Arch Bridge Elkader, Iowa Built in 1889 of native limestone, the two 84' clear spans are 27'9" high, 240' long, using 17,612,255 pounds of material and 4,161 cu. ft. of stone. It is listed on the National Register of Historic Places."
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postcard of "Keystone Arch Bridge Elkader, Iowa Built in 1889 of native limestone, the two 84' clear spans are 27'9" high, 240' long, using 17,612,255 pounds of material and 4,161 cu. ft. of stone. It is listed on the National Register of Historic Places."