Solving the 4166, 1899 Coordinates Puzzle in Big Walk

The button for the 4166, 1899 puzzle is tucked away behind a specific cluster of rocks in the far southern region of the world. To find it, you'll need the in-game map to navigate toward a destroyed train and a strange multi-light structure near the southern railway line. It's a long trek, but with the right landmarks, it's a straightforward discovery.

This guide breaks down how to acquire the map, decipher the coordinates, and follow the path directly to this well-hidden secret.

01

First, Where's the Map?tag

You can't solve a coordinates puzzle without a map. This is a hard prerequisite, and you'll be wandering blind until you acquire it. The map isn't available from the start; you have to earn it by completing a key objective in the game's progression.

To get the map, you must first complete the Red Tower. Finishing this major landmark puzzle rewards you with a key. With this key in hand, you can then find and unlock the dedicated map room. Inside, you'll be able to pick up the physical map item, which you can consult anytime to see your location and the world's grid system.

02

How to Read the Map Coordinatestag

Once you have the map, the numbers 4166, 1899 will start to make sense. They aren't just random digits; they're a precise set of grid coordinates. Let's break down how to interpret them.

• Primary Grid (41, 18): The first two digits of each number refer to the major grid lines on your map. Think of 41 as the vertical column (like longitude) and 18 as the horizontal row (like latitude). Your first step is to find the large square on your map where column 41 and row 18 intersect.
• Sub-Grid Precision (66, 99): The second pair of digits provides the fine-tuning within that square. These act like percentages. The number 66 means you need to be about 66% of the way across the 41 column from left to right. The number 99 means you need to be 99% of the way down the 18 row—essentially, right at its southern edge.

Putting it all together, you're looking for a point in the bottom-right area of the 41-18 grid square. A quick glance at your map will show this corresponds to the far southern reaches of the world.

03

The Step-by-Step Walk to 4166, 1899tag

With the location deciphered, the real journey begins. If you've already unlocked the train fast-travel system, you may be able to shorten your trip significantly. If not, prepare for a long walk.

Starting Your Journeytag

A good starting point for your trek is a prominent blue structure located near the main railroad tracks. From here, your goal is directly south. The most significant immediate obstacle is a large mountain that stands between you and the southern region. You can't go around it easily, so you'll have to go over it.

Crossing the Mountaintag

Luckily, you don't have to forge your own path. There is a trail that winds its way up and over the mountain pass. The climb can be disorienting, especially if night falls, but keep an eye out for glowing green markers that occasionally line the trail. These will confirm you're on the right track. The walk is long and slow, so just keep pushing upwards and then back down the other side.

Final Approach and Landmarkstag

Once you're over the mountain, you're in the home stretch. You are now in the correct southern zone. To pinpoint the exact location, you need to find two crucial landmarks. The first and most obvious is a destroyed train carriage lying on its side next to the railway. The second is a strange, abstract structure nearby that features multiple lights. If you can see both of these, you are in the right place.

From the location of the wrecked train and the light puzzle, scan the immediate area for a noticeable rock base or formation. The button is not in the open but is cleverly hidden on this rock cluster.

04

Finding the Button's Exact Locationtag

The target is a specific formation of large rocks near the aforementioned landmarks. Don't waste time scouring the front-facing surfaces. The button is hidden from the most common lines of sight. You need to physically walk around to the back side of the rock cluster.

Tucked away on the rear of the rocks, you will find a small, pressable button. Interact with it to solve this stage of the puzzle.

05

What Happens When You Press It?tag

So what's the reward for this epic journey? Pressing the button doesn't give you an item directly. Instead, it triggers an event elsewhere in the world, making this a cooperative puzzle. When you press the button, a totem, which was previously closed, will open up. This allows another player—your friend—to interact with the now-activated totem to collect an item or complete a step in their own puzzle chain. It's a classic Big Walk challenge that requires communication and coordination.

The Short Versiontag

It's a long haul, but the path to the 4166, 1899 coordinates is clear if you follow the signs. Grab the map from the Red Tower's map room, head south from the blue structure, cross the mountain, and look for the wrecked train. Once you spot it, the button is just a few steps away, hidden behind the nearby rocks. Happy hiking!