Also known as Sierra Nevada Pale Ale (Draft)
Commercial description
We took our Pale Ale recipe and dry-hopped it! This addition of fresh, un-kilned (hops) in the fomenters gives the ESP a huge flowery nose. This beer has pleased the brewmaster so much that it should become a seasonal offering.
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Sierra Nevada Pale Ale (Draft)

The brewer markets this same or near-same product by more than one names. This can be the result of a brewer distributing this beer under different names in different countries, or the brewer simply changing the name, but not the recipe at different points in time.