This page details everything you need to know about how to complete the Explorer - Fallen Oak Branch quest, which can be acquired from an ASL Terminal after speaking with the robot named BURG.L in the Oak Lab. We’ll cover where you can find the trail marker and what materials you need to construct it.

Trail Marker	Reward
Fallen Oak Branch	100 (Raw Science)

Where to Find the Trail Marker at Fallen Oak Branch¶

The Fallen Oak Branch is located southwest of the Oak Lab, just west of the Plank Cliff near the center of the lower yard, as shown in the screenshot below.

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(1 of 2) The location of the Fallen Oak Branch in the lower yard.

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The location of the Fallen Oak Branch in the lower yard. (left), You’ll need to kill some mites on top of the branch. (right)

You’ll need to jump on top of the branch from the western side, then kill a few mites which are waiting on top. You can then run to the highest point of the branch where you’ll find the trail marker, as shown in the gif below.

How to Construct the Fallen Oak Branch Trail Marker¶

To construct the trail marker here you’ll need 2 Sprig, 2 Plant Fiber, and 1 Clover Leaf. You’ll find plenty of clover leaves and sprigs throughout the grasslands to the east and northeast. Plant Fibers can be extracted from most vegetation as you cut it down, but you’ll also get it from bits on the floor if you’re lucky. The springs are generally found throughout grassy parts of the yard, and often intermingled with the clover leaves.

Trail Marker Materials¶

Icon	Material	Quantity
	Sprig	x2
	Plant Fiber	x2
	Clover Leaf	x1

Once you have all of the materials to construct the trail marker, all you need to do is interact with it and press the key to build. You can then customize the icon and its color if you wish. This icon will be visible on your HUD as you wander through the yard, which basically means that you’ll be able to see it in the distance when you’re facing in the right direction.

How to Disable Trail Markers¶

With the trail marker constructed, you should have earned 100 Raw Science. You can always disable the trail marker from the map so that it doesn’t display on your HUD if you have no use for it, but it shouldn’t be too intrusive to leave on and they are very useful orienting icons.

Copying Trail Markers¶

You’ll notice that when you interact with the constructed trail marker, you have an option to copy it. You can do this to create another trail marker nearby, which you can also customize with its own icon and color. This can be useful to mark the location of specific Field Stations on your HUD, or to mark the location of a particularly good farming spot for materials / bugs. You can even just mark a site that you think is pretty, or place the marker at the top of one of your bases, for example.