For thiry years I have been a scientist in Boulder, Colorado. Now I work in geophysics at UNAVCO, involved with the present geophysics of western north America, and with the past geological history of the west. I am also an avocational historian about early western explorers, including the adventures, skills, and achievements of explorers and naturalists in the Rocky Mountains.

I have a life-long interest in the exploration and natural history of the American West. Though I am not now giving presentations, except for special occasions, I have given many talks about Lewis and Clark and about Zebulon Pike, and was on-board historian for Missiouri River "Lewis and Clark" canoe trips offered by ROW Adventures. I wrote a basic reference on the firearms of the Lewis and Clark Expedition, (published in "We Proceeded On," the journal of the Lewis and Clark Trail Historic Foundation (May 2006, vol. 32, no. 2, pp. 10-17, and see Letters, August 2006, vol. 32, no 3.). I duplicated some Lewis and Clark navigational observations at some of their campsites. In the cold season I work on a map of the west as it was known to the mountain men, and writing a book, With Rifle and Sextant: the Tools and Skills of the Lewis and Clark Expedition. If you know for dead certain what an 1803 Dutch oven looks like, let me know.

I was raised in Kansas, educated back east, and have lived in Colorado for the past 31 years. I enjoy canoe trips, trips into the Rocky Mountains via any conveyance and at any time of year, wild flower photography, navigation and maps, and modern and primitive camping. I make and use replicas of historical equipment. At the moment I am working on an "elegant fusil" and repairing a damaged fly rod. I aspire to someday to be able to cast a fly.

See my web site Day by Day with Lewis and Clark - A Guide to Sources of Information, a top guide to the best books about the Expedition, including information about the journals, maps, native American Indians, equipment, achievements in discovery and exploration, and their extensive scientific work.

See also my resources about Early Western Explorers , the Mountain Men, and The Native Trees of the Southern Rocky Mountains.