Las Vegas is one long walk and a lot of dark
FOG covers the entire world map and gives it back only where you have walked. Las Vegas produces one of the strangest results of any city: a brilliant stripe four miles long, a bright knot downtown, and desert.
Las Vegas on the FOG map, fog burned off in a long stripe along a walked route down Las Vegas Boulevard.
The Strip is a corridor, not a neighbourhood
Las Vegas Boulevard runs about four miles from Mandalay Bay at the south end up past the Sahara at the north, and it is one of the most heavily walked streets in the United States. Pedestrian bridges lift you over the big intersections at Tropicana, Flamingo and Spring Mountain, because crossing at road level is not an option.
What surprises people is the scale. The resorts are so large that walking between two neighbours takes twenty minutes, and much of that time you are inside, crossing a casino floor or a shopping arcade. Indoors reveals nothing useful, because you are not on a street and the signal is poor. The Strip walk you actually record is the outdoor sidewalk and the bridges.
Downtown, four miles further north, is a different city. Fremont Street is a covered pedestrian mall, again indoors in effect. But the Fremont East blocks and the Arts District around Main Street and Charleston are proper walkable ground, with normal-sized blocks and things at street level.
The one walk everybody should do
Start at Mandalay Bay in the late afternoon and walk north. Cross the bridges, take the sidewalk past the Bellagio fountains, keep going through the Venetian and Wynn stretch, and finish around the Sahara. That is roughly six and a half kilometres and it takes far longer than the distance suggests, because everything pulls you sideways.
The better second walk is the Arts District. Park once, then loop Main Street, Commerce, Casino Center and the cross streets around 18b, and continue north into Fremont East. The blocks are small, the streets connect, and you clear more actual map in an hour there than in two hours on the Strip.
Why the fog barely moves out here
This is the honest part. Las Vegas is a car city in a desert, and outside two corridors it is genuinely brutal on foot. The valley is laid out on a coarse grid of arterial roads spaced about half a mile apart. Between them sit walled subdivisions with cul-de-sacs that do not connect to each other, so a street that looks like it goes through often just ends at a block wall. Summerlin and Henderson are built this way almost entirely.
The result on your map is unmistakable. You will have a long bright ribbon down the Boulevard, a compact bright patch downtown, thin lines along whatever arterials you attempted, and enormous black rectangles in between. It is not a failure of effort. It is what the city is.
Accuracy is also worth a mention. Between the towers on the Strip, with glass on both sides of a narrow outdoor corridor, GPS wanders. Your track can drift across the Boulevard and back. Once you are out on open arterial roads or in the Arts District it settles.
Heat is the actual limit
From roughly June to September, daytime highs sit above forty degrees and walking the Strip at two in the afternoon is a bad idea rather than a hardship. People do it and people get into trouble doing it. The walking season here is November through March, when the days are mild and clear and the nights are cold.
In summer, walk at night. The Strip is fully lit and busy until very late, which makes it one of the few places where a midnight walk is normal.
If you want ground that is not asphalt, the valley edges have real trails: the Wetlands Park along the Las Vegas Wash on the east side, and the loops out toward Red Rock in the west. Those clear different territory entirely.
Background exploring keeps revealing with the app closed and the screen off, so the phone can stay in a pocket where it is not cooking.
What FOG actually does
The whole world map starts hidden under fog. Every street you physically walk is revealed permanently. Driving the Boulevard clears nothing. It works the same everywhere on Earth, for walking, running or riding.
Free to explore. One purchase of USD 5.99 unlocks unlimited ranks, every character and history import, and there is no subscription. Ranks climb with area covered: Wanderer, Scout, Pathfinder, Explorer, Voyager. The collection is 241 countries, 3,390 regions and 7,342 named places, added only by standing in them. For any city you have walked, FOG shows the percentage you have lit up.
No account, no sign-up, no cloud, no analytics, no ads, no tracking. The map never leaves the phone and you can export your data.
Questions people actually ask
Does walking through a casino count?
Indoors is unreliable. GPS is weak inside large buildings and you are not on a street, so the useful reveal on the Strip comes from the outdoor sidewalks and the pedestrian bridges.
How long is the full Strip walk?
Roughly four miles, about six and a half kilometres, from Mandalay Bay to the Sahara. Allow much longer than the distance suggests.
Why is my track drifting on the Boulevard?
Tall glass towers on both sides of the street reflect satellite signal, so GPS wanders in that corridor. It settles on open roads and away from the resorts.
Is there any point using this in a car city?
Yes, but expect a stripe rather than a field. The Strip, downtown and the Arts District fill in well. The subdivision grid behind them is slow and often does not connect on foot.
Can I import old trips to Vegas?
Yes, if you have Google Timeline exports or GPX files. History import comes with the one-time unlock.
Start with a dark map.
FOG is free to explore. No account, no subscription, and your map never leaves your phone.
free to explore · one purchase unlocks everything · never a subscription