BIG THOMPSON RIVER AVENZA GPS MAP DOWNLOAD

The Big Thompson River Fishing Map is designed to give anglers a clear, detailed understanding of one of northern Colorado’s most scenic and diverse trout rivers. Flowing from the high elevations of Rocky Mountain National Park through Estes Park and down Big Thompson Canyon toward the Front Range, the river offers classic freestone fishing defined by pocket water, riffles, and deep canyon pools. The Big Thompson supports healthy populations of brown and rainbow trout, with cutthroat present in upper stretches, and provides rewarding fishing opportunities from spring through fall.

This map highlights the Big Thompson’s most iconic sections, including the upper river inside Rocky Mountain National Park, the town stretch through Estes Park, and the dramatic canyon water downstream. Public land boundaries are clearly marked for legal and confident access, along with carefully researched access points and exclusive parking locations found on no other maps, making it easier to plan efficient days on the water and explore lesser-known stretches. Detailed insect hatch charts reflect the river’s strong freestone insect life, with stoneflies, caddis, PMDs, and mayflies driving productive dry fly fishing, supported by nymphing and streamer tactics throughout the season. Whether you’re fishing technical pocket water in the canyon or broader runs near town, this map delivers the practical, field-ready information needed to fish the Big Thompson with confidence.