A paper map can show you the shape of Flaming Gorge. It can’t show you where the Red Canyon ledges sit, how the shoreline moves with the dam’s drawdown, or where the trophy lake trout structure holds. Lake Genius puts all 91 miles – from the Utah canyons up into the Wyoming open water – on your phone, with daily-updated depth and hazards, and it works offline.
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A printed map shows a single snapshot, not much use on a reservoir whose shoreline shifts by tens of feet with seasonal drawdown. Generic boating apps stretch static data across the whole country and price it accordingly.
Lake Genius is built for Flaming Gorge specifically. The map updates daily, redraws the shoreline to the current level, and works fully offline once downloaded, which matters when coverage drops through the canyon arms.
Flaming Gorge’s canyon walls hide what’s beneath them, with submerged rocks, ledges, and drawdown-exposed structure, plus sharp drop-offs in the canyon arms. Zoom in and the X-Ray View renders a simulated 3D view of the bottom: depth contours beneath the water, hazards within 9 feet of the surface highlighted, and the current waterline in red. It updates daily, so you see today’s hazards, not last season’s.
Flaming Gorge changes character as you go: the dramatic red-rock canyons of Utah at the south end, the wider open water of Wyoming to the north. Lake Genius maps the whole reservoir, including Red Canyon, Sheep Creek Bay, Hideout Canyon, Antelope Flat, and the open Wyoming waters, so you always know where you are across all 91 miles and which state’s rules you’re under, online or off.
Lake Genius carries 2,000+ curated points of interest across every lake it covers, placed by our team rather than crowdsourced. At Flaming Gorge, that includes:
Lucerne Valley Marina (Utah, west shore near Manila), Cedar Springs Marina (Utah, near Flaming Gorge Dam at Dutch John), and Buckboard Crossing Marina (Wyoming, near McKinnon; seasonal), all full-service. Antelope Flat is a USFS paved ramp on the Utah side near Dutch John, and the marina ramps round out the access points; Buckboard Crossing and Antelope Flat are the most water-level-sensitive.
Red Canyon, Flaming Gorge Dam, Sheep Creek Bay, Hideout Canyon, and the open Wyoming water to the north.
Trophy lake trout (“Macs”), kokanee, rainbow trout, and smallmouth bass structure. Flaming Gorge also holds burbot, an invasive species that anglers are required to kill on the catch.
Flaming Gorge is arguably the best lake trout fishery in the lower 48, and it’s a structure game. Trophy “Macs,” kokanee, rainbows, and smallmouth all relate to depth and the canyon contours. The X-Ray View’s depth contours help you find the ledges, drop-offs, and humps where fish hold, and you can adjust the water level in the app to scout how that structure changes. Mark a spot, drop a photo pin, and it’s there next trip.
Coverage holds at the main marinas but drops through the canyon arms. Download the Flaming Gorge map before you launch and the interactive map, X-Ray View, depth contours, POI, GPS navigation, and saved routes all work without a connection. Water level and weather pulls need a brief signal, so grab those at Lucerne Valley or Cedar Springs first.
The curated POI are just the start. Drop custom markers on your lake trout structure, your favorite canyon arm, or the beach you want back next year. Snap a photo and the Photo Marker pins it to the map. Share any marker by text, and when they tap the link, the app opens and the marker drops onto their map.
Daily underwater hazard updates
Water level–adjusted depth contours
X-Ray View (9-ft hazard zone)
91 mi of canyon mapped with POI
Works offline (no cell service)
Custom markers and photo pins
GPS tracking on the water
Built specifically for Flaming Gorge
This app is awesome! Such a great way to spot underwater hazards easily on your phone. Saves you a lot of hassle and money from hitting your prop on a rock!
— Liv.ballam
…this app is brilliant for everyone!! It shows hazards, where beaches are coming out and you can even download offline maps. Plus so much more!! It’s worth every penny!!
— boo1214
My go to app for boating now!
— RoaringBreeze
Yes. Lake Genius gives you an interactive Flaming Gorge map with underwater terrain, depth contours, marinas, the canyon arms, and 2,000+ curated points of interest across Utah and Wyoming, on your phone and available offline.
Yes. The X-Ray View shows simulated 3D depth contours and highlights hazards within 9 feet of the surface, updated daily against the current water level.
Yes. Download the map before your trip and the map, X-Ray View, POI, GPS, and saved routes all work without cell service, which matters in the canyon arms where coverage drops. Water level and weather updates need a brief connection.
Yes. Lucerne Valley, Cedar Springs, Buckboard Crossing, and the Antelope Flat ramp are all mapped with location and services, across both the Utah and Wyoming sides.
Yes. The depth contours and X-Ray View help you read the ledges, drop-offs, and humps where lake trout, kokanee, and smallmouth hold, and you can save your own spots with custom markers and photo pins.
Yes. The full 91-mile reservoir is mapped from the Utah canyons up into the Wyoming open water. Fishing licenses and rules differ by state, so check current regulations for where you’re fishing.
91 miles of canyon across two states. Depth contours, daily-updated hazards, every marina, and the best lake trout structure in the lower 48, in your pocket and offline. Lake Genius turns Flaming Gorge into a map you can actually navigate.
Start your free trial · No credit card · Full offline access