I snagged this list from discoverthenw.com and thought I should tackle some if not all of it since I live here.

1. Mount Si Trail – WA
2. Grand Sawtooths Loop – ID
3. Wallace Falls Hike – WA
4. Sky Lakes Wilderness – OR
5. Hall Of Mosses Trail – WA
6. Boulder Chains Lake Trail – ID
7. Oyster Dome Trail – WA
8. Watchman Creek Trail – OR
9. Grove Of Patriarchs Trail – WA
10. Queens River Loop – ID
11. Bridal Veil Falls/Lake Serene Trail – WA
12. McKenzie River Trail – OR
13. Rattlesnake Ledge Trail- WA
14. Ship Islands Lake Trail – ID
15. Ozette Triangle – WA
16. Palisades Creek Trail – ID
17. Big Four Ice Caves – WA
18. Three Sisters Loop – OR
19. Horseshoe Basin Trail – WA
20. Odell Lake Overlook – OR
21. Enchanted Lakes Trail – WA
22. Spring Basin Wilderness Trail – OR
23. Point Of Arches Trail – WA
24. Chimney Rock – ID
25. Snoqualmie Falls – WA
26. Oregon Caves National Monument – OR
27. Gingko Petrified Forsest – WA
28. Cannon Beach – OR
29. Craters Of The Moon National Monument – ID
30. Willamette National Forest – OR
31. Dry Falls – WA
32. Oregon Coast – OR
33. San Juan Islands – WA
34. Shoshone Falls – ID
35. Mima Mounds – WA
36. Oregon Dunes National Recreation Area – OR
37. Oregon Badlands Wilderness – OR
38. Second Beach – WA
39. Crater Rings – ID
40. Mount Scott – OR
41. Hoh Rainforest – WA
42. Romona Falls – OR
43. Crater Lake – OR
44. Shi Shi Beach – WA
45. Smith Rock – OR
46. Beacon Hill – WA
47. Hells Canyon – OR
48. Columbia River Gorge – WA/OR
49. Devils Punchbowl – OR
50. Palouse Falls – WA
51. The Painted Hills – OR
52. The Ape Caves and Mount Saint Helens – WA
53. Stevens Mountain – OR
54. Mount Rainier National Park – WA
55. Indian Point – OR
56. Whistler – BC
57. Mount Hood – OR
58. Whatcom Falls – WA
59. Gerhard Mountain – OR
60. Niagara Springs – ID
61. The Cascade Loop – WA
62. International Selkirk Loop – WA/OR/BC
63. Columbia River Scenic Highway – WA
64. Silver Falls Tour Route – OR
65. Sawtooth Scenic Byway – ID
66. Chuckanut Drive – WA
67. Volcanic Legacy Scenic Highway – OR
68. Olympic Peninsula Loop – WA
69. Thousand Springs Scenic Byway – ID
70. Umpqua River Scenic Byway – OR
71. North Cascade Scenic Highway – WA
72. Crater Lake Rim Drive – OR
73. White Pass Scenic Byway – WA
74. Hells Canyon Scenic Byway – OR
75. Lewis and Clark Memorial Highway – WA
76. Marmes Rockshelter – WA
77. Fort Rock Cave – OR
78. Fort Warden – WA
79. Lewis and Clark National Historic Park – OR
80. Maryhill Stonehedge – WA
81. Oregon Trail Wagon Rutts – OR
82. Leavenworth – WA
83. Fort Laramie – OR
84. Pioneer Square, Seattle – WA
85. Fort Stevens – OR
86. Fort Casey – WA
87. The Seattle Underground Tour – WA
88. Atlas E Missle Site # 9 – WA
89. Monte Cristo – WA
90. Shaniko – OR
91. Old Molson – WA
92. Silver City – ID
93. Selleck – WA
94. Antelope – OR
95. Burke – ID
96. Durham – WA
97. Ashwood – OR
98. Bay Horse – ID
99. Liberty – WA
100. Golden – OR
101. Evansville – ID
102. Bodie – WA
103. Fort Rock – OR
104. Garnet – ID
105. Bordeaux – WA