D
- Dinosaur National Monument
- Dinosaur Valley State Park
- Dinosaur Valley State Park
- Dinosaur Valley State Park: Overlook Trail Loop
- Dipsea Trail
- Directa's line
- Direct Chute
- Diretta del Forame, 2932m
- Diretta Indren
- Dirt Candy
- Dirt Diggler
- Dirt Jump Park
- Dirt Merchant
- Dirty Lemmon Loop
- Dirty Lemmon Loop
- Dirty Lemmon Loop
- Discovery Park Loop
- Discovery Trail
- Disgusting Trees
- Disney Channel
- Ditch Pig
- Divide and Conquor
- Diving Board
- Dix Hut to Vignettes Hut
- Dix Mountain | C'est Notre Monde
- Dixon Cave
- Dixon Woods
- DIY S01E02: Mallory Couloir
- DIY S01E03: Chevalier Couloir
- DIY S01E05 : Unstad One
- DIY S02E08: Nosawa Gondola Line
- DIY S02E10: Angelique Couloir
- Djeu des Tête's lift line
- Döberitzer Heide Loop
- Doctor Park Loop
- Doctor Park Shuttle Run
- Doe Mountain
- Dog Beach
- Dog Face
- Dog Lake
- Dog Lake
- Dog Lake
- Dogleg
- Dogleg
- Dog Leg
- Dog Leg
- Dogleg Chute
- Dog Leg II
- Dogleg Peak Camping Mission
- Dog Mountain Trail
- Dog Patch
- Dogshit
- Dog's Leg Couloir
- Dole to Machermo
- Dollis Valley Green Walk
- Doll's Head Trail
- Dolmen Loop
- Dolomieu Trail
- Dolomiti di Brenta Trail 2019 - 64K
- Dolonne Couloir from Le Greye
- Dolonne Couloir from Youla
- Dome
- Dôme des Nants via the Col des Thurges
- Dômes de Miage Traverse
- Dome Traverse
- Dominion Mountain south side
- Dom N Flank
- Don't Stop
- Donut Falls
- Doolan and Wye Creek
- Doomsday Ramp
- Door 1
- Door 2
- Door 3
- Door 4
- Door Jamb to Loder Peak
- Door Trail
- Dorada line
- Double Arch
- Double Cabin Uphill