I,too, have enjoyed this tale immensely. I have been posting remarks on BrokebackSlash at
http://community.livejournal.com/brokebackslash/. As I said there, your prose was like poetry in many scenes. The turn of the phrase brought up so many visuals and brought the words to life.
Also, I was hoping you would do the story from Jack's point of view. And, make it a trilogy, covering the "sweet life" between Lees' death and Ennis' death. However, the title "The Moments Between" was already used for a multi-part fanfic by lolitary. Another good story, it starts in 1975 and continues on. It can be found on her journal at
http://lolitaray.livejournal.com/I do recall two other fanfics where Ennis dies first, and try as I might, I can't remember the names. I think they are available on BrokebackSlash, or on Wranglers at
http://community.livejournal.com/wranglers/.
One involves Ennis meeting up with a spirit Mother Bear on one of their camping trips. The Bear convinces Ennis to change his mind, take a chance. Ennis does, and they live together for almost thirty years, when Ennis dies of a sudden heart attack in Jack's arms at their ranch. More happens, but don't want to spoil it.
The second involved two or three small stories, strung together. There is a funeral, and a man attends. The wife greets him. At the end, the man decides to go home to his parents' ranch in Lightning Flat. One or two related stories follow, before the plot line is resolved. Again, don't want to spoil it!
Glad to have found this story. Keep up the great writing. Looking forward to Jack's point of view, and why Ennis would tell Alma that his Jack was dead.