I just hiked Mosquito this past weekend, and it did prove to be a fun, easy hike, with lovely, expansive views waiting at the top. For the trailhead, according to my odometer it's actually 2.0 miles from the junction of Lake Moxie and Troutdale Roads (approaching from the north the trail starts at a point past where the ATV/old logging road turns off to the west north of the moutain, as well as just past where the powerlines abut the road). At first I was even unsure if I was at the correct place for the trailhead, since the red bear paw blaze on the boulder is so faded it is difficult to tell what it is. However, after finding that the trail didn't immediately peter out I felt more reassured, and once I encountered more bear paw blazes I definitively knew it was the trail. After returning from the summit I built a cairn at the trailhead to make it easier for others to find it, but since some of the rocks were precariously balanced I'm not sure how long it will last. Plus, please note that when I was there Troutdale Road hadn't been graded in awhile (a very common theme that weekend), so it was pothole city for much of its length, but otherwise quite drivable for just about all cars. Just overall it proved to be an enjoyable mountain to hike, as opposed to that day's other venture, Moxie Mountain.