Desert Canyon Standoff
Red rock walls rise on both sides of a sandy canyon floor, with a dried riverbed running down the middle and boulders scattered across it. A rickety wooden bridge spans a narrow gap between the two cliff edges, and that is the one feature which decides how the encounter goes.

4778 by 3584 pixels, free to use in your games including commercial ones. No account needed to download. Generating your own opens the prompt below in the editor, and new accounts get 3 free maps with no credit card.
Running this map
Put anything with a ranged attack on the clifftops and the party has to choose between crossing the bridge under fire or finding a way up. The boulders are the only cover on the canyon floor. Cutting the bridge is the kind of decision players remember, so it is worth knowing in advance what is on the far side.
The prompt that made it
This is the exact text the generator was given. Change a detail or two and you get a map that fits your table instead of ours, which is the whole reason the prompt is here rather than hidden.
A sun-scorched desert canyon with tall red rock walls on both sides. A sandy floor with scattered boulders and a dried-up riverbed running through the center. A rickety wooden bridge spans a narrow gap between the two cliff edges. Cactus and scrub brush dot the landscape. Harsh midday sunlight with deep shadows against the canyon walls. Top-down, grid-aligned, battle map style.
Using it in a virtual tabletop
Suggested grid: 20 by 15 squares, 5 feet each
The map is drawn without grid lines on purpose, so you can set your own and have it line up. In Roll20 and Foundry VTT, upload the image, then set the grid to these dimensions and nudge the alignment until the squares sit on the terrain.
The file is a standard image, so it imports into Roll20, Foundry VTT, Owlbear Rodeo and Fantasy Grounds the same way any other map does. It also prints, if your table plays in person. For more maps of this kind, see the battle map generator.
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