# List of hillside letters in Idaho

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This is a list of hillside letters (also known as mountain monograms) in the U.S. state of Idaho. There are at least 36 hillside letters, acronyms, and messages in the state, possibly as many as 42.
| Monogram | Town | Description | Location |
| A | Arco | | 43°38′42″N 113°17′16″W﻿ / ﻿43.6451°N 113.2879°W﻿ / 43.6451; -113.2879﻿ (Arco) |
| B | Boise | | 43°35′55″N 116°08′56″W﻿ / ﻿43.5987°N 116.1489°W﻿ / 43.5987; -116.1489﻿ (Boise) |
| B | Bruneau | | 42°53′02″N 115°47′46″W﻿ / ﻿42.8838°N 115.7961°W﻿ / 42.8838; -115.7961﻿ (Bruneau) |
| B (uncertain existence) | Butte City | | 43°36′34″N 113°14′39″W﻿ / ﻿43.6095°N 113.2442°W﻿ / 43.6095; -113.2442﻿ (Butte City) (uncertain location) |
| B | Arco | Butte County High School | 43°39′17″N 113°17′40″W﻿ / ﻿43.6546°N 113.2945°W﻿ / 43.6546; -113.2945﻿ (Butte Co. High School) |
| C | Cambridge | | 44°33′36″N 116°42′23″W﻿ / ﻿44.5601°N 116.7064°W﻿ / 44.5601; -116.7064﻿ (Cambridge) |
| CHALLIS | Challis | | 44°29′45″N 114°14′57″W﻿ / ﻿44.4958°N 114.2491°W﻿ / 44.4958; -114.2491﻿ (Challis) |
| CV | Kooskia | Clearwater Valley High School | 46°09′08″N 115°59′01″W﻿ / ﻿46.1521°N 115.9837°W﻿ / 46.1521; -115.9837﻿ (Clearwater Valley High School) |
| D (uncertain existence) | Deary | | 46°48′33″N 116°33′22″W﻿ / ﻿46.8093°N 116.5562°W﻿ / 46.8093; -116.5562﻿ (Deary) (uncertain location) |
| D | Declo | | 42°28′47″N 113°34′39″W﻿ / ﻿42.4798°N 113.5775°W﻿ / 42.4798; -113.5775﻿ (Declo) |
| E | Emmett | | 43°50′00″N 116°28′56″W﻿ / ﻿43.8332°N 116.4822°W﻿ / 43.8332; -116.4822﻿ (Emmett) |
| 1860 F | Franklin | settled in 1860, the first town in Idaho | 42°01′40″N 111°49′26″W﻿ / ﻿42.0279°N 111.824°W﻿ / 42.0279; -111.824﻿ (founded 1860) |
| G | Grace | | 42°34′29″N 111°41′04″W﻿ / ﻿42.5746°N 111.6844°W﻿ / 42.5746; -111.6844﻿ (Grace) |
| H (uncertain existence) | Hagerman | | 42°48′42″N 114°53′49″W﻿ / ﻿42.8118°N 114.8969°W﻿ / 42.8118; -114.8969﻿ (Hagerman) (uncertain location) |
| H (uncertain existence) | Hailey | | 43°30′55″N 114°18′21″W﻿ / ﻿43.5153°N 114.3058°W﻿ / 43.5153; -114.3058﻿ (Hailey) (uncertain location) |
| H | Horseshoe Bend | | 43°54′30″N 116°12′54″W﻿ / ﻿43.9084°N 116.2151°W﻿ / 43.9084; -116.2151﻿ (Horseshoe Bend) |
| I | Pocatello | Idaho State University | 42°51′37″N 112°25′49″W﻿ / ﻿42.8603°N 112.4303°W﻿ / 42.8603; -112.4303﻿ (Idaho State University) |
| I | Inkom | | 42°47′59″N 112°15′09″W﻿ / ﻿42.7998°N 112.2524°W﻿ / 42.7998; -112.2524﻿ (Inkom) |
| K | Kamiah | | 46°15′06″N 115°58′51″W﻿ / ﻿46.2516°N 115.9809°W﻿ / 46.2516; -115.9809﻿ (Kamiah) |
| K | Kendrick | | 46°36′58″N 116°38′23″W﻿ / ﻿46.6161°N 116.6397°W﻿ / 46.6161; -116.6397﻿ (Kendrick) |
| L | Lava Hot Springs | | 42°36′54″N 112°00′29″W﻿ / ﻿42.6151°N 112.008°W﻿ / 42.6151; -112.008﻿ (Lava Hot Springs) |
| L | Leadore | | 44°42′57″N 113°22′03″W﻿ / ﻿44.7157°N 113.3676°W﻿ / 44.7157; -113.3676﻿ (Leadore) |
| L | Lewiston | | 46°27′40″N 117°00′14″W﻿ / ﻿46.461°N 117.004°W﻿ / 46.461; -117.004﻿ (Lewiston) |
| M | Malad City | | 42°11′58″N 112°13′40″W﻿ / ﻿42.1995°N 112.2279°W﻿ / 42.1995; -112.2279﻿ (Malad City) |
| M | Midvale | | 44°26′15″N 116°48′27″W﻿ / ﻿44.4374°N 116.8074°W﻿ / 44.4374; -116.8074﻿ (Midvale) |
| M | Montpelier | | 42°19′11″N 111°17′28″W﻿ / ﻿42.3198°N 111.2911°W﻿ / 42.3198; -111.2911﻿ (Montpelier) |
| M | Mullan | | 47°28′30″N 115°47′42″W﻿ / ﻿47.475°N 115.795°W﻿ / 47.475; -115.795﻿ (Mullan) |
| MH | Mountain Home | | 43°07′51″N 115°38′05″W﻿ / ﻿43.130814°N 115.634689°W﻿ / 43.130814; -115.634689﻿ (Mountain Home) |
| MV | Arimo | Marsh Valley High School | 42°35′50″N 112°09′11″W﻿ / ﻿42.5973°N 112.153°W﻿ / 42.5973; -112.153﻿ (Marsh Valley High School) |
| O | Oakley | | 42°11′47″N 113°54′57″W﻿ / ﻿42.1964°N 113.9157°W﻿ / 42.1964; -113.9157﻿ (Oakley) |
| O | Orofino | | 46°29′47″N 116°15′48″W﻿ / ﻿46.4964°N 116.2634°W﻿ / 46.4964; -116.2634﻿ (Orofino) |
| P | Pocatello | | 42°51′58″N 112°30′37″W﻿ / ﻿42.8662°N 112.5102°W﻿ / 42.8662; -112.5102﻿ (Pocatello) |
| P (uncertain existence) | Cottonwood | Prairie High School | 46°03′21″N 116°20′58″W﻿ / ﻿46.0559°N 116.3495°W﻿ / 46.0559; -116.3495﻿ (Prairie High School) (uncertain location) |
| P | Preston | | 42°05′39″N 111°47′54″W﻿ / ﻿42.0942°N 111.7982°W﻿ / 42.0942; -111.7982﻿ (Preston) |
| R | Rexburg | Ricks College | 43°47′24″N 111°58′02″W﻿ / ﻿43.7901°N 111.9671°W﻿ / 43.7901; -111.9671﻿ (Ricks College) |
| R | Rockland | | 42°35′48″N 112°52′48″W﻿ / ﻿42.5967°N 112.8801°W﻿ / 42.5967; -112.8801﻿ (Rockland) |
| S | Salmon | | 45°09′31″N 113°52′26″W﻿ / ﻿45.1586°N 113.8738°W﻿ / 45.1586; -113.8738﻿ (Salmon) |
| S (uncertain existence) | Shoshone | | 42°56′07″N 114°24′24″W﻿ / ﻿42.9354°N 114.4068°W﻿ / 42.9354; -114.4068﻿ (Shoshone) (uncertain location) |
| S | Soda Springs | | 42°40′10″N 111°36′22″W﻿ / ﻿42.6695°N 111.6061°W﻿ / 42.6695; -111.6061﻿ (Soda Springs) |
| SMHS | St. Maries | | |
| W | Weiser | | 44°15′54″N 116°57′33″W﻿ / ﻿44.265°N 116.9591°W﻿ / 44.265; -116.9591﻿ (Weiser) |
| WS | Dayton | West Side High School | 42°05′30″N 112°00′50″W﻿ / ﻿42.0918°N 112.014°W﻿ / 42.0918; -112.014﻿ (West Side High School) |