Rock Island Arsenal, Illinois Highways, Secondary Highways, etc

Latitude: 41.5156 (41°30′56″N), Longitude: -90.5649 (90°33′54″W)

Latitude: 41.5143 (41°30′52″N), Longitude: -90.5516 (90°33′6″W)

Latitude: 41.5154 (41°30′55″N), Longitude: -90.5225 (90°31′21″W)

Latitude: 41.5115 (41°30′41″N), Longitude: -90.5239 (90°31′26″W)

Latitude: 41.5129 (41°30′47″N), Longitude: -90.5213 (90°31′17″W)

Latitude: 41.5185 (41°31′7″N), Longitude: -90.5351 (90°32′6″W)

Latitude: 41.5186 (41°31′7″N), Longitude: -90.5334 (90°32′0″W)

Latitude: 41.5157 (41°30′57″N), Longitude: -90.5432 (90°32′35″W)

Latitude: 41.5164 (41°30′59″N), Longitude: -90.5342 (90°32′3″W)

Latitude: 41.5118 (41°30′42″N), Longitude: -90.5218 (90°31′18″W)

Latitude: 41.5149 (41°30′54″N), Longitude: -90.532 (90°31′55″W)

Latitude: 41.5126 (41°30′45″N), Longitude: -90.5423 (90°32′32″W)

Latitude: 41.5127 (41°30′46″N), Longitude: -90.5237 (90°31′25″W)

Latitude: 41.5168 (41°31′0″N), Longitude: -90.5411 (90°32′28″W)

Latitude: 41.5216 (41°31′18″N), Longitude: -90.5414 (90°32′29″W)

Latitude: 41.5171 (41°31′1″N), Longitude: -90.5472 (90°32′50″W)

Latitude: 41.5172 (41°31′2″N), Longitude: -90.5472 (90°32′50″W)

Latitude: 41.5225 (41°31′21″N), Longitude: -90.5475 (90°32′51″W)

Latitude: 41.5139 (41°30′50″N), Longitude: -90.5242 (90°31′27″W)

Latitude: 41.521 (41°31′16″N), Longitude: -90.5316 (90°31′54″W)