At the time of Tappaan's death, Sierra Club members were organizing to build a ski lodge on Donner Pass in the Sierra Nevada Mountains of Northern California.
(The "Sierra Nevada Northern Route" of the Lincoln Highway goes over Donner Pass.)
torreyanum - (Donner Pass buckwheat) - known from fewer than 10 occurrences near the Donner Pass
SR 18 and SR 38, none of these passes are at high elevations, with Cajon Pass being at a modest 4,190 ft (1,277 m) above mean sea level; this means that snow is less of a factor here than in the moderate to high mountain passes to the north like Donner Pass.
Khyber Pass | mountain pass | Elephant Pass | Joe Pass | Brenner Pass | Simplon Pass | Richard Donner | White Pass and Yukon Route | Stampede Pass | Maloja Pass | Donner Party | Usui Pass | Slip Stitch and Pass | Mountain pass | Mont Cenis Pass Railway | Little St Bernard Pass | Grants Pass, Oregon | Second Battle of Elephant Pass | Eagle Pass, Texas | Eagle Pass | Donner Pass | Crowsnest Pass | Chef Menteur Pass | Tejon Pass | Splügen Pass | Sir Lowry's Pass | San Bernardino Pass | Sabine Pass | Pass the Flask | pass |