• US Geological Survey USGS Public Lands Survey Map including survey township (6 mile) lines.
• Map of proposed Arizona Territory. From explorations by A. B. Gray & others, to accompany memoir by Lieut. Mowry U.S. Army, Delegate elect. with some proposed railroad routes Medium-sized JPG Zoom navigator
• National Park Service Map including route of the Southern Pacific railroad finally built in the 1880s.
• Gadsden Purchase, 1853–1854, Office of the Historian, US Department of State
• 3-cent commemorative stamp Lưu trữ 2013-12-07 tại Wayback Machine showing small version of northeast boundary of Purchase—i.e. claiming more territory for US pre-Purchase.
•  “Gadsden Purchase, The” . New International Encyclopedia. 1906. Chú thích có các tham số trống không rõ: |HIDE_PARAMETER4=, |HIDE_PARAMETER2=, |HIDE_PARAMETER6=, |HIDE_PARAMETER5=, |HIDE_PARAMETER1=, và |HIDE_PARAMETER3= (trợ giúp)
• Map of North America at the time of the Gadsden Purchase at omniatlas.com

Bản mẫu:USgrowthTọa độ: 32°07′54″B 110°33′13″T / 32,1318°B 110,5535°T / 32.1318; -110.5535