We used mapmyrun for this and it is 10.74 miles, not 9. With all the confusion with directions, this caused a bit of a panic for us, since we both had to be on call for work that evening. There were a few times we thought we were going to have to turn around and hike all the way back the way we came in. But thanks to Friarandtheangel, we kept following their detailed directions and made it out. We never did hike along a creek bed. The bridge crossing the creek has been rebuilt but from the directions we didn't think we were supposed to cross it. Still not sure. Probably won't do it again to find out. Okay hike through a nice mossy forest. Ate some blackberries along the way. Also saw a lot of salmon, thimble and huckleberries throughout the trip. Day was overcast and no bugs. Thistles close to narrow trail-glad we didn't see any bikers or horses but signs of both.

First some Admin- thanks to the other posts correcting trail info: here is a recap and what I found. The directions and description have changed. The Entrance is at D4000 and D4400. The path is directly across from D4400. There is another named the same next to D4400- Be sure its the one across the gravel road.It is the Mima Falls trail West entry About a 1/2 mile down is the trailhead and a sign, that's where you take a right on Trail #20.Then where it says take Green line 6, that is know the McKenny Trail.At the next intersection Follow the left trail with the McKenny trail and Mima falls sign. That becomes the Lost Valley Trail. At the end of that trail it hits another gravel road, take a left and less than a 1/2 mile there is a trail on the right- Continues the Lost Valley trail. That will lead back to the trailhead. Take the right back on 8/ Mima falls West and will lead back to D4000/D4400. The hike itself is nice and easy, some moments of real beauty. But it's really nice as a mind dump. Good place to just commune and wash away the world. I'm pretty sure a Fairy on a motorcycle stayed with me most of the way buzzing constantly around my head. I think she was guiding me. Met 6 mountain bikers- and some of the trail is very tight so be careful. Also saw a lot of Trail Apples and sign of horse, but only met a pair at the end. It was a good day, though moments of worry thinking I was on the wrong trails though I couldn't figure out where I went wrong. Just as I considered retracing things came clear- so keep on trucking. And bug spray- oh yes- bug spray.

Great hike if you're looking for something simple with a heaping helping of peace and quiet. The wife and I hiked the 9 mile loop and didn't encounter another soul. Trail was in great shape, just a few lengthy muddy spots along the middle portion of the loop near Sherman Creek. My only input for those attempting to find this hike, be aware that the posted directions on the trail description are inaccurate. The trailhead is at the intersection of D-4000 and D-4400, not D-5000. Additionally, the trailhead is marked as Mima Falls West, not Mima Portal Trail (you'll run into a sign about .3 down the trail with this name on it). If you reach a large T-junction with D-4400 veering off to your right and the Mima Falls trail crossing right though the junction you have found the right place!

Beginning of trail was clear and clearly marked but when we got to the lost valley section of the trail there was a new trail that ledto a road. So we went back to the trail junction and took the other trail and there were many down trees, and flooding on the trail due to beaver activity. This section of the trail needs trail mantainace badly.

We only went as far as the old abandoned logging road mentioned in the trail description, and then turned around due to time constraints. A very muddy, but really nice walk through the woods. The trilliums are out including a deep purple variety that I've never seen before. There is a significant trail reroute starting at the beaver pond. I'm not sure how recent this reroute is, but it essentially looks like someone took a bulldozer through the woods. This part of the trail is very very muddy, and was very slippery on the ascents and descents.