Natchaug River
Windham Co. · 30 mi · Class I–II
379CFS/ 3.13 ft
Optimal→Stable
Optimal: 100–600 CFS · USGS #01122000
Length
Difficulty
Optimal
Avg Flow
Hist. Median
USGS Gauge
Natchaug State Forest · Connecticut Blue-Blazed Trail
The gem of Connecticut's Quiet Corner — the Natchaug flows through Natchaug State Forest in eastern Connecticut with Class I–II rapids, swimming holes, and the legendary Diana Pool. The river's hemlock-shaded gorges and clean water make it feel more like northern New England than southern Connecticut.
Trip sections
Phoenixville to Diana Pool — Class I–II, state forest run
Diana Pool to Willimantic — Class I, lower river
Outfitters
Scott's Yankee Farmer
Local info and Natchaug State Forest access
72-Hour Flow Forecast
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10-Year Flow Patterns
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Data Quality
River conditions are community-verified. CFS ranges, difficulty ratings, and trip sections may not reflect every flow level or seasonal change. Always check current conditions, scout unfamiliar rapids, and paddle within your skill level. If you spot an error, use the Improve This River button at the top of the page — your local knowledge is what makes this atlas accurate.