Denver, CO Cultivated sunflowers are the fourth most common vegetable oil source worldwide. Sunflowers have a long history in the US, dating back at least a thousand years to when they were cultivated in fields by Native Americans. Wyoming has embraced sunflowers as a crop. We saw huge fields of them. Rather than showing us their sunny faces, the heads were all bent, heavy with the mature seeds and ready for harvest. Interesting as the huge fields of sunflowers were, since Jim is heavily into wildlife, the major excitement of the day was spotting antelopes. We saw 64 antelope and that was simply from travelling along the interstate. Imagine how many must be out there!