This is a list of hillside letters (also known as mountain monograms), large geoglyphs found primarily in the Western United States. There are about 600 in total, but the status of many of these symbols are uncertain, due to vagueness in sources.
The states with the most hillside letters are:
At least 31 monograms, possibly 33.
At least 30 monograms, possibly 37
Texas' 16 or more monograms are all in the westernmost mountainous, part of the state. There are six (in various states of repair) in El Paso alone, the most in any single city in the United States.
Most of Washington's 18 to 19 monograms are in the arid Eastern part of the state.
Between 24 and 25 monograms
Messages are common on the bare mountains surrounding Lima, Peru; most of them are personal graffiti, not community symbols.