Robert Van Pelt moved out west in 1984 from Madison, Wisconsin. He received a MS in 1991 and PhD in 1995 from the University of Washington. Research interests include old-growth ecology and canopy structure. He takes extensive measurements, sketches and photos from around the world, and makes exceptional drawings. Please contact him directly for more info. Bob is often in the forest for days or weeks, so give him plenty of time to get back to you. You can reach him at:
His website is: Forest Giants & Robert Van Pelt
The image above shows a drawing by Robert Van Pelt, of Atlas redwood. Its also one of the redwoods written about by author Richard Preston
As far as prices go, you will need to contact Robert Van Pelt and ask.