Tours are one hour long, beginning at 10 a.m.; $10, free for members of Native Seeds/SEARCH. Advance reservations are required via email to email@example.com. Learn what goes into preserving nearly 2,000 heritage indigenous crops, the second and fourth Friday of every month, at the Conservation Center, 3584 E. River Road, 622-0830. Experience hand-pollinating, threshing, winnowing and harvesting on the second and fourth Thursday of every month, at the the Conservation Farm, 42 San Antonio Road, Patagonia, (520) 394-0227. Visit nativeseeds.org for more information.