| # | Name | Elevation | Prominence | Isolation | Counties | Quadrangle |
| 1 | Umatilla National Forest HP | 7,926' | 346' | 0.91 | Grant | Vinegar Hill |
| 2 | Ben Harrison Peak | 7,830' | 410' | 2.12 | Grant | Vinegar Hill |
| 3 | 7373 | 7,373' | 313' | 2.56 | Grant | Desolation Butte |
| 4 | Jumpoff Joe Peak | 6,980' | 738' | 3.61 | Grant | Desolation Butte |
| 5 | 6551 | 6,551' | 491' | 1.74 | Umatilla | Tower Mountain |
| 6 | 6500 | 6,500' | 880' | 6.87 | Grant | Silver Butte |
| 7 | Rabbit Butte | 6,460' | 720' | 4.87 | Grant | Olive Lake |
| 8 | Oregon Butte | 6,394' | 2,409' | 49.81 | Columbia | Oregon Butte |
| 9 | Diamond Peak | 6,387' | 795' | 6.71 | Garfield | Diamond Peak |
| 10 | Misery, Mount | 6,374' | 557' | 1.30 | Garfield | Diamond Peak |
| 11 | West Butte | 6,292' | 352' | 0.75 | Columbia | Oregon Butte |
| 12 | 6260 | 6,260' | 360' | 2.97 | Umatilla | Tower Mountain |
| 13 | Table Rock | 6,250' | 1,033' | 11.92 | Columbia | Deadman Peak |
| 14 | Misery Benchmark | 6,223' | 323' | 1.49 | Garfield | Saddle Butte |
| 15 | 6172 | 6,172' | 312' | 0.69 | Umatilla | Tower Mountain |
| 16 | Ten Cent Butte | 6,156' | 496' | 3.03 | Grant | Granite |
| 17 | 6110 | 6,110' | 370' | 1.42 | Grant | Granite |
| 18 | 6103 | 6,103' | 603' | 2.08 | Grant | Trout Meadows |
| 19 | 6101 | 6,101' | 321' | 2.50 | Grant | Trout Meadows |
| 20 | Trout Meadows Butte | 6,100' | 440' | 2.19 | Grant | Trout Meadows |
| 21 | 6085 | 6,085' | 385' | 3.11 | Grant | Olive Lake |
| 22 | Milk Shakes, West | 6,062' | 562' | 2.78 | Wallowa | Bone Spring |
| 23 | 6052 | 6,052' | 432' | 1.67 | Grant | Trout Meadows |
| 24 | Winom Butte | 5,980' | 718' | 4.62 | Grant | Kelsay Butte |
| 25 | Burnt Flat | 5,980' | 632' | 3.86 | Columbia | Godman Spring |
| 26 | Kelsay Butte | 5,976' | 312' | 4.58 | Grant | Kelsay Butte |
| 27 | 5910 | 5,910' | 410' | 1.24 | Umatilla | Tower Mountain |
| 28 | Round Butte | 5,904' | 404' | 3.42 | Wallowa | Wenaha Forks |
| 29 | Little Turkey Tail | 5,900' | 400' | 2.94 | Columbia | Godman Spring |
| 30 | Saddle Butte | 5,900' | 994' | 3.79 | Asotin | Saddle Butte |
| 31 | 5900 | 5,900' | 400' | 4.11 | Columbia | Godman Spring |
| 32 | Bone Springs Benchmark | 5,876' | 392' | 7.46 | Wallowa | Bone Spring |
| 33 | Deadman Peak | 5,873' | 333' | 2.86 | Columbia | Deadman Peak |
| 34 | Arbuckle Mountain | 5,847' | 737' | 2.50 | Morrow | Arbuckle Mountain |
| 35 | 5836 | 5,836' | 536' | 1.15 | Grant | Granite |
| 36 | Paradise Ridge | 5,825' | 365' | 1.41 | Wallowa | Bone Spring |
| 37 | Horrible, Mount | 5,820' | 320' | 2.14 | Asotin | Saddle Butte |
| 38 | 5804 | 5,804' | 304' | 2.20 | Umatilla | Pearson Ridge |
| 39 | Yellow Jacket Benchmark | 5,780' | 640' | 3.76 | Umatilla | Big Meadows |
| 40 | Bald Mountain | 5,775' | 345' | 2.30 | Morrow | Arbuckle Mountain |
| 41 | Pearson Ridge | 5,740' | 400' | 4.30 | Umatilla | Pearson Ridge |
| 42 | 5740 | 5,740' | 428' | 1.75 | Grant | Silver Butte |
| 43 | 5722 | 5,722' | 382' | 1.84 | Umatilla | Pearson Ridge |
| 44 | Madison Butte | 5,707' | 877' | 10.10 | Morrow | Madison Butte |
| 45 | Dusty Ridge | 5,700' | 482' | 3.47 | Umatilla | Jubilee Lake |
| 46 | Little Bald Mountain | 5,678' | 308' | 0.63 | Morrow | Arbuckle Mountain |
| 47 | Twin Buttes, North | 5,674' | 454' | 3.71 | Columbia | Godman Spring |
| 48 | 5653 | 5,653' | 313' | 1.83 | Wallowa | Bone Spring |
| 49 | Chase Mountain | 5,642' | 742' | 3.92 | Columbia | Godman Spring |
| 50 | Twin Buttes, South | 5,631' | 331' | 1.01 | Columbia | Godman Spring |
| 51 | Driveway Ridge | 5,582' | 482' | 2.02 | Garfield | Saddle Butte |
| 52 | Weller Butte | 5,540' | 640' | 3.91 | Columbia | Oregon Butte |
| 53 | 5500 | 5,500' | 680' | 6.86 | Union | Andies Prairie |
| 54 | Bald Butte | 5,479' | 699' | 3.72 | Columbia | Diamond Peak |
| 55 | Black Mountain | 5,460' | 600' | 12.88 | Umatilla | Thimbleberry Mountain |
| 56 | Copple Butte | 5,438' | 428' | 3.66 | Morrow | Madison Butte |
| 57 | 5420 | 5,420' | 440' | 3.39 | Umatilla & Union | Tollgate |
| 58 | Halsey Butte | 5,395' | 855' | 2.66 | Garfield | Diamond Peak |
| 59 | Yearling Ridge | 5,380' | 360' | 1.91 | Columbia | Oregon Butte |
| 60 | 5380 | 5,380' | 360' | 2.60 | Union | Andies Prairie |
| 61 | 5367 | 5,367' | 467' | 2.64 | Umatilla | Big Meadows |
| 62 | Matlock Hill | 5,350' | 420' | 3.26 | Morrow | Matlock Prairie |
| 63 | 5340 | 5,340' | 666' | 4.35 | Wallowa | Wenaha Forks |
| 64 | Sawtooth Ridge | 5,331' | 351' | 2.07 | Wallowa | Wenaha Forks |
| 65 | Huckleberry Butte | 5,322' | 382' | 9.54 | Garfield | Stentz Spring |
| 66 | High Ridge | 5,303' | 403' | 2.99 | Union | Andies Prairie |
| 67 | Table Glade | 5,300' | 480' | 3.41 | Umatilla | Tollgate |
| 68 | Ninemile Ridge | 5,260' | 320' | 1.13 | Union | Andies Prairie |
| 69 | Day Ridge | 5,254' | 394' | 2.56 | Columbia | Deadman Peak |
| 70 | 5230 | 5,230' | 560' | 19.53 | Umatilla | Granite Meadows |
| 71 | Tupper Butte | 5,184' | 514' | 2.27 | Morrow | Madison Butte |
| 72 | Green Peak | 5,180' | 360' | 1.79 | Columbia | Deadman Peak |
| 73 | "Prominencians Peak" | 5,139' | 919' | 1.50 | Garfield | Diamond Peak |
| 74 | Huckleberry Mountain | 5,137' | 437' | 4.20 | Umatilla | Thimbleberry Mountain |
| 75 | 5093 | 5,093' | 313' | 0.94 | Columbia | Diamond Peak |
| 76 | Wheeler Point | 5,020' | 440' | 2.55 | Wheeler | Wheeler Point |
| 77 | Little Tamarack Mountain | 5,013' | 753' | 12.48 | Grant | Kimberly |
| 78 | Tamarack Mountain | 4,980' | 341' | 1.14 | Grant | Kimberly |
| 79 | Round Mountain | 4,970' | 400' | 1.55 | Morrow | Arbuckle Mountain |
| 80 | Happy Jack Ridge | 4,956' | 571' | 2.48 | Grant | Turner Mountain |
| 81 | 4950 | 4,950' | 330' | 1.05 | Garfield | Diamond Peak |
| 82 | Range Benchmark | 4,940' | 320' | 7.07 | Grant | Wildcat Point |
| 83 | Drumhill Ridge | 4,900' | 320' | 1.83 | Umatilla | Drumhill Ridge |
| 84 | Huckleberry Mountain | 4,900' | 440' | 4.67 | Union | Sanderson Spring |
| 85 | Columbus Sewell Knob | 4,820' | 720' | 1.63 | Grant | Bologna Basin |
| 86 | 4820 | 4,820' | 400' | 1.80 | Umatilla | Big Meadows |
| 87 | Sugarloaf Mountain | 4,780' | 520' | 2.46 | Umatilla | Drumhill Ridge |
| 88 | 4780 | 4,780' | 560' | 1.41 | Columbia | Diamond Peak |
| 89 | Round Mountain | 4,745' | 445' | 3.74 | Umatilla | Bingham Springs |
| 90 | 4740 | 4,740' | 320' | 3.65 | Wallowa | Wenaha Forks |
| 91 | Spring Mountain | 4,700' | 480' | 1.59 | Umatilla | Drumhill Ridge |
| 92 | Sugarloaf | 4,697' | 397' | 2.14 | Columbia | Godman Spring |
| 93 | 4691 | 4,691' | 431' | 0.77 | Columbia | Oregon Butte |
| 94 | 4642 | 4,642' | 382' | 1.73 | Columbia | Oregon Butte |
| 95 | 4623 | 4,623' | 323' | 1.02 | Columbia | Oregon Butte |
| 96 | 4580 | 4,580' | 440' | 3.04 | Umatilla | Bingham Springs |
| 97 | 4488 | 4,488' | 348' | 0.88 | Union | Andies Prairie |
| 98 | 4473 | 4,473' | 373' | 1.68 | Garfield | Diamond Peak |
| 99 | Horseshoe Ridge | 4,460' | 640' | 6.16 | Umatilla | Duncan |
| 100 | 3944 | 3,944' | 354' | 2.09 | Umatilla | Huron |
| 101 | Broken Ridge | 3,820' | 360' | 2.60 | Umatilla | Big Meadows |
| 102 | Graves Butte | 3,620' | 400' | 2.28 | Umatilla | Bingham Springs |