From a Usenet thread (in rec.arts.movies.current-films):
Let us explore whether Ennis and
Jack ever returned to Brokeback Mountain.
original story
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"Years on years they worked their way through the high
meadows and mountain drainages, horse-packing into the
Big Horns, Medicine Bows, south end of the Gallatins,
Absarokas, Granites, Owl Creeks, the Bridger-Teton
Range, the Freezeouts and the Shirleys, Ferrises and
the Rattlesnakes, Salt River Range, into the Wind Rivers
over and again, the Sierra Madres, Gros Ventres, the
Washakies, Laramies, but never returning to Brokeback."
published screenplay
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All of the Brokeback Mountain scenes are explicitly
labeled as such:
BROKEBACK MOUNTAIN, WYOMING: (various places on the mountain)
The remaining mountain locations are labeled as follows:
WYOMING MOUNTAIN ROAD
WYOMING MOUNTAIN ROAD: REMOTE SITE
WYOMING MOUNTAIN ROAD: CLIFF
WYOMING CAMPSITE
BIG HORN MOUNTAINS, WYOMING: CAMPSITE
BIG HORN MOUNTAINS, WYOMING
WYOMING MOUNTAINS
WYOMING MOUNTAINS: LAKE
WYOMING MOUNTAINS: TRAILHEAD
FLASHBACK, BROKEBACK MOUNTAIN, WYOMING: CAMPFIRE
WYOMING MOUNTAINS: TRAILHEAD
movie
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This is not so easy, but on one viewing, and looking
out for it, it seemed to me that all of the mountain
locations were distinctly different from any scene we
saw on Brokeback. Except: in the climactic mountain
scene, when Jack says, "... so what we got now is
Brokeback Mountain. Everything built on that", he
gestures with his arm as if to say, over there,
where what we're looking at over there may be the
profile of Brokeback, but I couldn't be sure. Or the
gesture may have meant, here. So it's not clear what
Ang Lee had in mind. It will require at least one more
viewing to maybe get an answer.
But this point is so acutely important,it seems to me,
because Brokeback should not be brought down to where
they went for years and years, but instead it should
remain their unblimished, shining, magical memory of
youth and joy. That makes the saving of the shirts
more meaningful, and the postcard picture with them on
the door more exquisite, and the final impression of
the movie so piercing. I hope it meant that to Ang Lee.