I've just starting making plans to attempt a hike of the Pacific Crest Trail next summer. The PCT is a 2,650 mile trail that runs from the border with Mexico to the Canadian border, roughly following the crest of the Sierra Nevada and the Cascade Mountains. The hike will likely begin in late April or very early May, and with luck I would finish in September. If you click on the map you can see a high resolution shot of the route. Many of those who have hiked the PCT believe it is one of the most enjoyable of the major scenic trails. I hope that is my experience as well. I look forward to another summer on the trail!