Lagier Ranches is in Escalon, CA, in the Central Valley. I saw & tried the sour cherries, they are suppose to be good for baking. I saw them around 10am, the guy told me they'll only have it today Sat 6/1/13 & they are the only ones that sell it at the Ferry Bldg FM.
Well not that hard it turns out. Inspired by this thread I found some today at the FM. They weren't labeled as sours (why?) which is why they didn't sell out immediately. But I recognized them and bought them ALL. =)