This Destiny 2 Winding Cove, The Gulch Lost Sectors page will explain where to find all the mini-dungeons within that area of the EDZ / Earth Patrol space.
If you want more information on how to find Lost Sectors and the rewards they offer, our Lost Sectors locations page can help.
Destiny 2 Winding Cove, The Gulch Lost Sectors
The three Lost Sectors in Winding Cove and The Gulch are:
The Weep location
Location: Head to Winding Cove. The symbol for the The Weep can be found on the hill just to the right of where you spawn in Winding Cove. It should be on the far-side of the hill from this direction.
To enter this dungeon, you'll need to jump to the top of the rocky hill. Look for a tree bough that's laying on its side at the top. Drop down through the cleverly hidden hole and you'll land on a rocky ledge.
Strategy: Drop down again to enter a glittery, hidden area with a flooded floor. Look for a broken tree bough that's pointing towards a ledge. Use this tree to reach the platform with the dark, glittery area above it.
Turn right when you reach this area, jump onto the platform to your left and you'll see a lit area to your right.
Jump over, turn left and you'll be in a bright, green area. Take out the Fallen Dregs and Vandals before progressing. Now jump up over the two small waterfalls to your right. Turn left, to enter the final area.
This area is split into three sections, a lower area (which is full of Dregs, Vandals and Shanks), a raised area to your right and a back area beyond it. The boss will be in the opening area.
Kill enough of his men to force him back to the raised section. Beware of Shanks and Dregs trying to ambush you. Head to your right as you ascend and the boss will retreat to the final area.
Rannix doesn't teleport as much as other captains, so keep pummeling him up close with auto rifle fire or a decent side-arm/hand cannon. Once he's down (he found using the rocky pillars great for quick cover), the chest will be ready and waiting for you at the back.
This year's Festival of the Lost has arrived - which includes the Book of the Forgotten and Jurassic Green to unlock. Elsewhere in Season of the Lost, there are new Exotics such as the Ager's Scepter and the long-awaited arrival of crossplay. New activities include the Wayfinders Voyage, the Astral Alignment activity and finding Atlas Skew, Trivial Mystery, Enigmatic Mystery, Ascendant Mystery, Data Cache, Parallax Trajectory and Ascendant Anchor locations. Elsewhere, we've seen new Nightfall weapons such as the Uzume RR4, Plug One.1 and Hung Jury SR4. Other recent new features include transmog and materials Synthstrand, Synthcord and Synthweave, the Splicer Gauntlet and Decrypted Data used to upgrade it.
Flooded Chasm location
Location: This Lost Sector can be accessed from two different points, one in The Gulch, and another in Winding Cove. See both sets of screenshots to see the points on the map for locating either symbol.
The one from The Gulch isn't easiest to find as you simply have to cross the open area from where you spawn - the symbol here is on a rock just before a cave opening.
Strategy: From the direction of The Gulch, enter the cave, turn left, turn right, then turn right again shortly after. Drop down and you'll see a red-lit corridor. Follow this then turn left to enter the large open area of the dungeon.
This area is being contested between The Cabal and the Fallen. If you entered from the direction of The Gulch, you'll enter the cave behind The Cabal, and vice versa if you entered from Winding Cove.
From The Cabal end, take out the sole Centurion first, then the small number of Legionnaires and Psions.
From the Winding Cove direction, there are lots of Vandals, Dregs and Shanks. Focus fire on the Shanks and the Vandals as some of the latter have sniper rifles and can cause you grief. In the middle you'll find the loot chest and your boss, Phyzann.
He's a pretty standard captain, and he'll teleport and strafe, peppering you with fire from his grenade launcher. Take out all his minions first then use a decent hand cannon to bring his shield down and end him. There's a lot of cover in this area, so there's a lot of room for flanking.