| 2.5 Mile Trail | | Moulton and Lucia Falls | | 2 miles | -112 ft | 109 ft |
| 45th Parallel | | Whipple Creek Park | | 4,553 ft | -94 ft | 105 ft |
| Aaron's Climbing Trail | | Yacolt Burn State Forest | | 1,043 ft | | 120 ft |
| Abandoned Trail | | Dark Divide | | 1 mile | -26 ft | 1,081 ft |
| Access Lot to JDZ | | Lacamas Park | | 971 ft | -3 ft | 28 ft |
| Across The Field | | Whipple Creek Park | | 1,289 ft | | |
| ADA Trail | | Mossyrock Wildlife Area | | 3,638 ft | -17 ft | 9 ft |
| Alder Loop Trail | | Salmon-Morgan Creeks Natural Area | | 3,284 ft | -18 ft | 22 ft |
| Alec Creek 80B | | Dark Divide | | 1,772 ft | -23 ft | 107 ft |
| Allen Mountain Trail #269 | | Osborne Mountain | | 3 miles | -892 ft | 973 ft |
| Anita's Hill | | Whipple Creek Park | | 459 ft | | 26 ft |
| Ape Canyon Trail | | Mt. St. Helens National Volcanic Monument | | 4 miles | -309 ft | 1,613 ft |
| Appaloosa | | Yacolt Burn State Forest | | 4 miles | -179 ft | 1,384 ft |
| Back Rollers | | Lacamas Park | | 577 ft | | 23 ft |
| Back to school | | WSU Vancouver | | 1,066 ft | | 28 ft |
| Barbwire Marsh | | Whipple Creek Park | | 1,335 ft | -63 ft | 6 ft |
| Bay Loop Trail | | Leadbetter Point State Park | | 1 mile | -10 ft | 11 ft |
| Bearberry Trail | | Leadbetter Point State Park | | 1 mile | -3 ft | 11 ft |
| Beargrass | | Yacolt Burn State Forest | | 1 mile | -523 ft | 74 ft |
| Bell's View Trail | | Ocean Park | | 1,427 ft | -26 ft | 4 ft |
| Bells Mountain | | Yacolt Burn State Forest | | 9 miles | -1,906 ft | 1,147 ft |
| Bench Trail | | Lacamas Park | | 1,102 ft | -23 ft | 8 ft |
| Big Creek Trail #252 | | Osborne Mountain | | 2 miles | -603 ft | 1,250 ft |
| Big O | | Fallen Leaf Park | | 709 ft | -46 ft | 13 ft |
| Big Tree Creek | | Moulton and Lucia Falls | | 1,007 ft | -13 ft | 38 ft |
| Big Tree Trail | | Gotchen Creek | | 2 miles | -41 ft | 381 ft |
| Birth of a Lake Trail | | Mt. St. Helens National Volcanic Monument | | 102 ft | | |
| Birth of a Lake Trail | | Mt. St. Helens National Volcanic Monument | | 2,260 ft | -39 ft | 30 ft |
| Bishop Ridge 272 | | Dark Divide | | 7 miles | -470 ft | 3,651 ft |
| Black Lake Loop | | Black Lake | | 1 mile | -120 ft | 135 ft |
| Black Lake Trail | | Black Lake | | 5,056 ft | -53 ft | 59 ft |
| Blue Lake Butte #119 | | Dark Divide | | 4 miles | -536 ft | 990 ft |
| Blue Lake Connector | | Mt. St. Helens National Volcanic Monument | | 1,280 ft | | 80 ft |
| Blue Lake Creek Campground Connector | | Dark Divide | | 2,172 ft | | 223 ft |
| Blue Lake Hiker Trail #274 | | Dark Divide | | 2 miles | -1,645 ft | |
| Blue Lake Horse Trail | | Mt. St. Helens National Volcanic Monument | | 5 miles | -13 ft | 1,257 ft |
| Blue Lake ORV Parking Connector | | Dark Divide | | 699 ft | | 71 ft |
| Blue Lake Ridge 271B | | Dark Divide | | 3 miles | -1,946 ft | 7 ft |
| Blue Lake Ridge 271A | | Dark Divide | | 6 miles | -622 ft | 2,268 ft |
| Blue Lake Ridge Trail 272 | | Dark Divide | | 2 miles | -477 ft | 118 ft |
| Blue Lake Trail 3A | | Dark Divide | | 2 miles | -143 ft | 554 ft |
| Bluff Mountain #172 | | Silver Star Scenic Area | | 6 miles | -1,350 ft | 852 ft |
| Bluff Trail #24 | | Dark Divide | | 2 miles | -1,883 ft | |
| Boneyard | | Fallen Leaf Park | | 991 ft | -156 ft | |
| Bottoms Trail | | La Center Bottoms | | 5,217 ft | -2 ft | 94 ft |
| Boulder Trail 1C | | Dark Divide | | 1 mile | -442 ft | |
| Boundary Trail 1 | | Dark Divide | | 8 miles | -2,051 ft | 1,212 ft |
| Boundary Trail | | Mt. St. Helens National Volcanic Monument | | 4 miles | -109 ft | 1,724 ft |
| Boundary Trail 1 | | Dark Divide | | 25 miles | -4,438 ft | 5,193 ft |
| Boundary Trail (Cold Creek to Norway Pass) #1 | | Mt. St. Helens National Volcanic Monument | | 7 miles | -1,875 ft | 1,329 ft |
| Boundary Trail (Norway Pass Eastward) #1 | | Mt. St. Helens National Volcanic Monument | | 2 miles | -948 ft | 89 ft |
| Boundary Trail (Norway Pass Eastward) 2 #1 | | Mt. St. Helens National Volcanic Monument | | 5 miles | -442 ft | 1,162 ft |
| Boundary Trail Access #1 | | Dark Divide | | 3,612 ft | -410 ft | |
| Bradford County Trail | | Vancouver | | 489 ft | | 52 ft |
| Bradford County Trail | | Vancouver | | 2,766 ft | -75 ft | 61 ft |
| Bradford County Trail | | Vancouver | | 1,316 ft | | 31 ft |
| Brezee Creek Trail | | West Fork Lewis River Greenway | | 3,327 ft | -35 ft | 208 ft |
| Buck Creek Trail #54 | | Gotchen Creek | | 4 miles | -149 ft | 846 ft |
| Burl Cutoff | | Whipple Creek Park | | 449 ft | | 3 ft |
| Butte Camp Trail #238A | | Mt. St. Helens National Volcanic Monument | | 2 miles | -1,399 ft | 13 ft |
| Butterfly Meadow spur | | WSU Vancouver | | 531 ft | | |
| Captain Clark Park | | Steigerwald Lake | | 3,215 ft | -6 ft | 7 ft |
| Carousel Hill | | Whipple Creek Park | | 335 ft | -35 ft | |
| Cascade Crest 580 | | Skamania County | | 4 miles | -1,411 ft | 337 ft |
| Cave Creek Trail #255 | | Osborne Mountain | | 2,516 ft | -59 ft | 395 ft |
| Cedar Cathedral | | Vancouver | | 1,453 ft | -17 ft | 18 ft |
| Cedar Loop | | Whipple Creek Park | | 755 ft | | 6 ft |
| Central Forest | | Green Mountain | | 1 mile | -48 ft | 27 ft |
| Central School District | | Green Mountain | | 3,862 ft | -154 ft | 3 ft |
| Central to S Connector trail | | Green Mountain | | 430 ft | -6 ft | |
| CFC East | | Lacamas Park | | 1,234 ft | -53 ft | 12 ft |
| CFC West | | Lacamas Park | | 709 ft | | 44 ft |
| CG-2031A | | Stevenson Ridge Natural Resource Conservation Area | | 2 miles | -350 ft | 108 ft |
| CG-2031A1 | | Stevenson | | 1 mile | -696 ft | 18 ft |
| Chapel Spur | | Lacamas Park | | 1,546 ft | -116 ft | 85 ft |
| Chapel Spur Boulder Fields | | Lacamas Park | | 449 ft | -19 ft | 42 ft |
| Cheating Equestrian | | WSU Vancouver | | 125 ft | | |
| Chelatchie Rail Trail | | Battle Ground Lake State Park | | 1 mile | | 100 ft |
| Chinook | | Silver Star Scenic Area | | 2 miles | -1,358 ft | 27 ft |
| Chinook Creek - Siouxon Trail Connector | | Siouxon Area | | 1,240 ft | -54 ft | |
| Chinook Creek Trail 130A | | Siouxon Area | | 1 mile | -1,146 ft | |
| Chute | | Lacamas Park | | 1,982 ft | -100 ft | |
| Cispus Lookout Trail #127 | | Dark Divide | | 2,743 ft | | 315 ft |
| Clothesline | | Lacamas Park | | 817 ft | -107 ft | |
| Cold Creek | | Yacolt Burn State Forest | | 4 miles | -1,861 ft | 9 ft |
| Cold Creek CG Connector | | Yacolt Burn State Forest | | 1,276 ft | -22 ft | |
| Cold Creek CG Connector | | Yacolt Burn State Forest | | 958 ft | | 13 ft |
| Cold Creek CG Connector | | Yacolt Burn State Forest | | 518 ft | | 12 ft |
| Cold Springs Trail #72 | | Gotchen Creek | | 4 miles | -1,876 ft | 32 ft |
| Coldwater Peak Trail | | Mt. St. Helens National Volcanic Monument | | 3,458 ft | | 628 ft |
| Coldwater Trail #230 | | Mt. St. Helens National Volcanic Monument | | 4 miles | -162 ft | 2,651 ft |
| Colleen's Couplet | | Lauretta Norene Forest Preserve | | 1,572 ft | -6 ft | 5 ft |
| Columbia | | North Bonneville | | 2,923 ft | | 14 ft |
| Columbia | | North Bonneville | | 1,867 ft | -54 ft | 52 ft |
| Columbia | | North Bonneville | | 3,326 ft | -18 ft | 12 ft |
| Columbia River Trail | | Steigerwald Lake | | 4 miles | -22 ft | 25 ft |
| Connector | | Peterman Ridge Wildlife Area | | 1,545 ft | -71 ft | |
| Connector | | Yacolt Burn State Forest | | 627 ft | | 39 ft |
| Connector | | Salmon-Morgan Creeks Natural Area | | 177 ft | -2 ft | |
| Connector | | Peterman Ridge Wildlife Area | | 1 mile | -83 ft | 148 ft |