Diamond A Chuckwagon Diamond a. ChuckwagonThe Diamond-A chuck wagon was built in Deming around 1900 and is unusually large. It serviced cattle roundups for many years at the Cow Springs section of Victoria I. Visit Us ENDLESS EXHIBITS Military Room Pottery Collection Old Timers Room Deming School Tack Room Heritage Gem Collection Pottery Room Western Area Geode Kids Chuckwagon Medical Room Archives Transportation