Question: Tom Rosenbauer is a fly fishing mentor that has published books for a retaila nd mail-order business founded in what state?
Context: Fly Fishing, first published in 1899 by English author and diplomat Edward Grey, 1st Viscount Grey of Fallodon (1862–1933), is a book about fly fishing English chalk streams and spate rivers for trout and salmon.  It includes reminisces about the author's fly fishing experiences on Hamptonshire rivers.  The book was in print for nearly 50 years and has been extensively reprinted in the 21st century. An artificial fly or fly lure is a type of fishing lure, usually used in the sport of fly fishing (although they may also be used in other forms of angling).  In general, artificial flies are an imitation of natural food sources which fly fishers present to their of fish while fly fishing.  Artificial flies are constructed by fly tying, in which furs, feathers, thread or any of very many other materials are tied onto a fish hook.  Artificial flies may be constructed to represent all manner of potential freshwater and saltwater fish prey to include aquatic and terrestrial insects, crustaceans, worms, baitfish, vegetation, flesh, spawn, small reptiles, amphibians, mammals and birds, etc.  Effective artificial fly patterns are said to be "killing flies" because of their ability to put fish in the creel for the fly fisher.  There are thousands of artificial fly patterns, many of them with descriptive and often idiosyncratic names. Scientific Anglers is a fly fishing company specializing in a variety of fly fishing tackle products.  Scientific Anglers is noted for the invention of PVC coated floating fly line and continued innovations in fly line cores and coatings.  Scientific Anglers's products currently include a variety of lines, fly boxes, reels, and fly fishing educational materials. The Catskill Fly Fishing Center and Museum is a nonprofit, educational organization dedicated to: preserving America's fly fishing heritage; teaching its future generations of fly fishers; and protecting its fly fishing environment.  The museum is located along Willowemoc Creek in the heart of the Catskills at 1031 Old Route 17 in Livingston Manor, New York. This general annotated bibliography page provides an overview of notable and not so notable works in the English language regarding the sport of fly fishing, listed by year of first publication.  Although not all the listed books are devoted exclusively to fly fishing, all these titles contain significant fly fishing content.  The focus of the present page is on classic general texts on fly fishing and its history, together with notable public or university library collections dedicated to fly fishing. Joe Brooks (Joseph White Brooks) 1901–1972 was an American Fly Fisherman and popular writer about the sport of fly fishing during the mid-20th century.  He was born in Baltimore, Maryland in 1901 and died in Rochester, Minnesota in 1972.  He wrote for the leading fishing and outdoor magazines of the day and was the outdoor editor for "The Baltimore Sun".  He also wrote ten books about fly fishing, several of which are still considered leading authorities on the subject.  He is listed by a leading online fly fishing publication, Fly Fishing Frenzy, as one of the 10 most influential fishermen ever.  And the IGFA and others said he did more to popularize and expand fly fishing than any other individual. This annotated bibliography is intended to list both notable and not so notable works of English language, non-fiction and fiction related to the sport of fly fishing listed by year published.  Although 100% of any book listed is not necessarily devoted to fly fishing, all these titles have significant fly fishing content.  Included in this bibliography is a list of species related fly fishing literature. Tom Rosenbauer is a fly fishing mentor and author who currently works and resides in the Manchester, Vermont area.  He has published books for Orvis, which he has been with for over 30 years. Frederic Michael Halford (13 April 1844 – 5 March 1914), pseudonym Detached Badger, was a wealthy and influential British angler and fly fishing author.  Halford is most noted for his development and promotion of the dry fly technique on English chalk streams.  He is generally accepted as "The Father of Modern Dry Fly Fishing."  John Waller Hills, "A History of Fly Fishing for Trout" (1921) called Halford "The Historian of the Dry Fly". Orvis is a family-owned retail and mail-order business specializing in high-end fly fishing, hunting and sporting goods.  Founded in Manchester, Vermont, in 1856 by Charles F. Orvis to sell fishing tackle, it is the oldest mail-order retailer in the United States.
Answer: Vermont