Gary wrote, "I know that cedar fences eventually rot where they touch earth or are imbedded in the ground and have significant moisture for most of the year (i.e. desert is probably not a problem)."
No, the bottoms in the sand don't rot here. It's the rest of the wood that rots, baked in the high-altitude sun, dried, splintered, and falling apart. I used to live in Eugene, a wonderful city, and loved the gentle rains, occasional snow, and the green. Enjoy. Be of Good Cheer, Fr Donald Cram, Rio Rancho, New Mexico, USA "The Brandywine Railway and Navigation Company" Based on the maps and geography of the East Farthing of Middle Earth from J.R.R. Tolkien's Lord of the Rings Gauge O at 16 mm : 1 ft from Bucklebury Ferry to Bree Gauge 1 at 15 mm : 1 ft through the Withywindle Forests