Driving through 8 states on our way from Ontario to British Columbia. Made a slight detour to visit Walnut Grove MN (of Little House on the Prarie fame) which put us in-line with these two virtuals. It was because of this cache that I clued in that Mount Rushmore is in SD and was able to add it to our target destinations along the way - otherwise we probably would have went north after Walnut Grove. Thanks Memfis Mafia for the virtuals.
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