Just finished it. Really, really liked it. Reminded me more of Brokeback than anything else I've read of hers - lyrical nature descriptions, the scope and sweep of a novel condensed, no, pressurized, into a short story told hard and sharp as flint. And characters who, while very much themselves, remind me somewhat of Ennis, and Aguirre, and Jack - even Jake - in that Archie's singing voice was "halfway between a shout and a song".
There's more I'd like to discuss, but it'd be hard not to give away plot...