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*We try to pack and ship online orders the same day or next as often as possible. If you would like to make an appointment to stop by the Fly-Cave located at 8157 W Morraine Dr. Littleton, CO 80128, please call or text the shop phone at 720-580-9558 or email us at The shop is open for walk-in shopping Mon-Fri from 8am - 4:30pm and by appointment during off hours and weekends*close


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Shop Gift Certificates

Biologist Selected.
Fish Approved.

Give the gift of success on the fly to your family and fishing buddies with an Ascent Fly Fishing Gift Certificate.

Featured in Florida Sport Fishing

Is it “Cheating” if a Biologist Packs Your Fly Box?

Denver, CO- “What are they biting on?” has been the question on every angler’s lips since the inception of fishing, and is the one that Ascent Fly Fishing has risen to answer for the freshwater angler once and for all.


Featured in the denver post

Fly Fishing Rendezvous aims for everyman appeal

Among the myriad mysteries and confounding questions faced by beginning — and often enough experienced — fly-fishermen, perhaps the most profound can be summarized in two simple words: What happened?


Featured in 9news

Catching Colorado: Ascent Fly Fishing


Featured in The Drake

Colorado's Ascent Fly Fishing has your fix

Google Maps took me deep into suburban Denver, where I wound up in front of a nondescript two-story house. I parked and rechecked the address. I walked up to the front door and knocked. A man appeared. We shook hands. Then he opened his garage to reveal 400,000 flies in a dozen trays. Apparently this was the right place.


Featured in The Gazette

Fly Fishing Rendezvous showcases Colorado-based companies

DENVER — More than half the time Juan Ramirez fishes the Arkansas River, he could be in shorts, no waders. "Hopper Juan," as his nickname goes, ties on the dry fly pattern he designed, trailed by a dropper intended to fool fish under the surface.


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