the main builder of log homes in the southwest and in colorado. The use mainly lodgepole pine that has been treated, not with CCA. These logs come in the traditional round logs or the famous more popular "D" logs that give the roundness on the exterior but have the flat surface inside for a nice finished wall or one that you can hang drywall to. Now, the logs are also plowed and grooved so that each log interlocks into the log both below and on top of it. Its like a huge rabbit on the top with a opposite cut to interlock on the other log.
Saterwhite log home kits suggest that you use liquid nails by the gallons and 60D galv pole nails to nail every two feet the pole to the below pole and the entire rabbit area is filled with liquid nails.
Now, there are many different log home builders, and many different ways and techniques of putting these together. I worked one summer on a crew assembling these homes and a 2400 sq ft home can be done in three days. This is of course once the slab and plumbing and electrics have been established. Very easy.
Tools needed are a chain saw, 1/2 inch drill with a foot of drill bits, caulking gun and a good size sledge.
Satterwhite's Web site is very informative and very interesting to see.