Lake trip · Williams County, North Dakota
Where to stay at Blacktail Dam Lake
Blacktail Dam Lake covers 158 acres in Williams County, with water clarity of about 7.2 ft. Compare cabins, resorts, and vacation rentals below. The water-quality readings cover nutrients and algae; they are not a stay-or-skip rating. Late spring through early fall, with June through August the peak season for swimming, boating, and fishing.
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Places to stay near Blacktail Dam Lake
Cabins, resorts, hotels, and vacation rentals near Blacktail Dam Lake in Williams County, North Dakota — live availability and prices. Add your dates to see totals.
Top-rated places to stay near Blacktail Dam Lake
Prices for Sep 18–20, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
About the water
Blacktail Dam Lake has nutrient and algae measurements on record from state and federal monitoring. Water clarity is about 7.2 ft of visibility. Algae (chlorophyll-a) measures 8.6 µg/L. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim. The readings are not a reason to skip cabins and rentals around the lake.
Best time to visit
Late spring through early fall, with June through August the peak season for swimming, boating, and fishing.
Check the National Weather Service forecast for Blacktail Dam Lake →
About Blacktail Dam Lake
Fishing & license
North Dakota fishing license
North Dakota also requires the once-yearly Fishing, Hunting, Furbearer Certificate ($2 resident / $5 nonresident), so a first purchase totals $29 resident and $73 nonresident.
Residents and nonresidents age 16 and older need a fishing license. Residents under 16 may take and possess a limit of fish without a license; nonresidents under 16 may also take and possess a limit of fish without a license when accompanied by an individual possessing a valid fishing license. Residents 65 or older qualify for a reduced $10 Senior Citizen Fishing License, and residents who are totally/permanently disabled or veterans with a 50 percent service-related disability also pay $10. · Fishing is effectively open year-round: the hook-and-line season is open in all waters open to fishing from April 1 through March 31 of each fishing year, which is also the license year. Dated exceptions include darkhouse spearfishing (Nov 15 - Mar 15), paddlefish snagging (May 1 - 21, 7 am - 7 pm CT, separate tag required), and salmon snagging (Sep 25 - Oct 31).
Prices as published by North Dakota Game and Fish Department, 2026-27.
Camping & RV near Blacktail Dam Lake
Search public campgrounds and RV sites near Blacktail Dam Lake on Recreation.gov, then compare cabins, resorts, and rentals on the map above.
Common questions
Frequently Asked Questions
Cabins, resorts, and vacation rentals around Blacktail Dam Lake in Williams County, North Dakota are on the map above with live availability and nightly prices. Waterfront rentals put you on the dock; lodging in the nearest town is usually cheaper with more choice.
Blacktail Dam Lake has nutrient and algae measurements on record from state and federal monitoring. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim.
Late spring through early fall, with June through August the peak season for swimming, boating, and fishing.
Explore Blacktail Dam Lake
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LakeQuality Lake Trip Planner (2026)
Free trip-planning guide for Blacktail Dam Lake: how to pick a clean lake, the water-quality signals that matter, best swimming and fishing windows, and where to stay.
Lodging availability and prices are provided by Stay22 and its booking partners (Booking.com, Vrbo, Expedia); LakeQuality may earn a commission from bookings at no extra cost to you. Water-quality readings are independent of lodging listings. Always check current health-department advisories and managing-agency conditions before you travel.