Idaho Highway Historical Marker Program

Idaho Highway Historical Marker Program
A typical Highway Historical Marker, containing a title, description, and sign number.

This page contains the complete list of Highway Historical Markers from Idaho's Highway Historical Marker Program that are featured in the Idaho map expansion DLC for American Truck Simulator.

The Highway Historical Marker Program was featured in an SCS Software blog post.

List

The list contains an image and the location of each Highway Historical Marker featured in the game and an exact copy of its title, description, and sign number.

Sign numbers followed by "MT" or "UT" indicate that the associated Highway Historical Marker also requires the Montana or Utah map expansion DLC in order to be accessed.

#	Title	Description	Location	Image
17	IDAHO'S 1st RAILROAD	THROUGH THIS CANYON ONCE PUFFED THE WOOD - BURNING LOCOMOTIVES OF THE NARROW - CAUGE UTAH AND NORTHERN RAILWAY	IS15US30 frontage road west of Inkom
75	Challis IDAHO	LAND of the YANKEE FORK STATE PARK	ID75 in Challis
93	Challis IDAHO	LAND of the YANKEE FORK STATE PARK	US93 in Challis
152	ATOMS FOR PEACE	AN IMPORTANT PAGE IN ATOMIC HISTORY WAS WRITTEN HERE ON JULY 17, 1955, WHEN THE LIGHTS OF ARCO WERE SUCCESSFULLY POWERED FROM ATOMIC ENERGY	US20US26US93 in Arco
163	LAWYER'S CANYON	NAMED FOR THE NEZ PERCE INDIAN LEADER WHO SERVED AS HEAD CHIEF 1848-1871 ABD WHO LIVED NEAR THE LOWER END OF THE CANYON.	US95 north of Grangeville	163, 189, and 371
167	THE FIRST CAPITAL	THE ORGANIZATION OF IDAHO TERRITORY WAS PROCLAIMED IN LEWISTON JULY 10, 1863 AND THE FIRST TWO LEGISLATURES MET HERE.	US95 north of Lewiston	167, 176, and 314
165 MT	Bonners Ferry	The village of Bonners Ferry was formally established in 1893, along the south bank of the Kootenai River. Scattered along the valley and benchland were a few ranches and homesteads.	US2US95 in Bonners Ferry	165 and 491
172	SHOSHONE FALLS	4 MILES EAST OF HERE, THE SNAKE RIVER FALLS IN THUNDER 210 FEET OVER A ROCKY LEDGE HIGHER THAN FAMOUS NIAGARA.	US93 in Twin Falls	172 and 411
176	MACKENZIE'S POST	EARLY IN SEPTEMBER 1812, DONALD MACKENZIE SET UP FUR TRADE POST NEAR HERE FOR JOHN JACOB ASTOR'S PACIFIC FUR COMPANY	US95 north of Lewiston	167, 176, and 314
189	LEWIS AND CLARK	ON MAY 27, 1806 SGT. JOHN ORDWAY AND PVTS. FRAZER AND WEISER WERE DISPATCHED FROM CAMP CHOPUNNISH TO SNAKE RIVER TO OBTAIN SALMON	US95 north of Grangeville	163, 189, and 371
197	TOLL GATE	AN 1868 TOLL ROAD TO ROCKY BAR PROVIDED BETTER ACCESS TO EARLY GOLD MINES 40 MILES NORTH OF HERE.	US20 in Tollgate
229	GODDIN'S RIVER	KNOWN AS GODDIN'S RIVER IN THE DAYS OF THE FUR TRADE, THIS STREAM ORIGINALLY WAS NAMED FOR THE TRAPPER WHO DISCOVERED IT.	US93 north of Mackay
247 MT	LOLO SUMMIT	THE LEWIS AND CLARK PARTY CROSSED THIS PASS SEPT. 13, 1805. WESTBOUND FOR THE PACIFIC AFTER A LONG DETOUR TO THE SOUTH. From the headwaters of the Missouri they had crossed the mountains to the Salmon. Finding that river impassable, they traded for packhorses, hired an Indian guide, and came north to an Indian trail across the mountains here. Tired and ill-fed, the men were to have a hard struggle in early snow along the steep ridges which the trail followed for most of its 125 mile course west to the Clearwater River.	US12 west of Lolo	Unique sign model with an expanded description.
252 MT	1910 FIRE	MORE THAN 3,000,000 ACRES OF TIMBER IN THIS AREA BURNED DURING AN EXCEPTIONALLY DRY SUMMER IN 1910. A GIGANTIC FIRE STORM ON AUGUST 20 DID UPRECEDENTED DAMAGE.	IS90 between Coeur d'Alene and Thompson Falls	252 and 430
269 MT	LEWIS AND CLARK	ON THEY WAY NORTH SEARCHING FOR A ROUTE OVER IDAHO'S MOUNTAIN BARRIER, LEWIS AND CLARK LEFT THIS CANYON AND ASCENDED A HIGH RIDGE TO REACH THE BITTERROOT VALLEY IN EARLY SEPTEMBER, 1805.	US93 north of Salmon
278	HORSE SHOE BEND	GOLD WAS STRUCK IN BOISE BASIN (OVER THE RIDGE TO THE EAST) IN 1862, AND THE RUSH TO THESE NEW MINES CAME THROUGH HERE.	ID55 in Horseshoe Bend
287	LAVA FORMATIONS	MOLTEN ROCK FORCED UPWARD FOR 30 TO 50 MILES THROUGH FISSURES IN THE EARTH HAS COOLED INTO THE HARD LAVA FOUND HERE	IS15 between Pocatello and Idaho Falls	Northbound Southbound
292	SALMON RIVER	RISING AS A SMALL STREAM IN THE VALLEY TO THE SOUTH, THE SALMON WINDS 420 MILES ACROSS IDAHO BEFORE FLOWING INTO SNAKE RIVER	ID75 east of Stanley
293	AN EARLY INDUSTRY	AT THE TOP OF THIS HILL 3 TO 5000 YEARS AGO, PREHISTORIC MEN HAD A ROCK QUARRY WHERE THEY MADE A VARIETY OF STONE TOOLS	US95 south of Cambridge
294	NEZ PERCE WAR	NEAR THE BASE OF THIS HILL, OVER 100 CAVALRYMEN AND VOLUNTEERS MET DISASTER IN THE OPENING BATTLE OF THE NEZ PERCE WAR.	US95 south of Grangeville
297	NUCLEAR REACTORS	SINCE 1949, MORE NUCLEAR REACTORS - OVER 50 OF THEM - HAVE BEEN BUILT ON THIS PLAIN THAN ANYWHERE ELSE IN THE WORLD.	US20US26 east of Butte City	297 and 304
304	LOST RIVER	WHEN ITS WATER IS NOT DIVERTED FOR UPSTREAM IRRIGATION, LOST RIVER FLOWS PAST HERE INTO A SINK 14 MILES TO THE NORTHEAST.	US20US26 east of Butte City	297 and 304
305	GOODALE'S CUTOFF	AN OLD EMIGRANT ROAD HEADED WEST ACROSS CAMAS PRAIRIE AND THEN DESCENDED TO THE VALLEY BELOW ON ITS WAY TO REJOIN THE OREGON TRAIL 28 MILES WEST OF HERE.	US20 east of Tollgate	305 and 353
305	GOODALE'S CUTOFF	AN OLD EMIGRANT ROAD HEADED WEST ACROSS CAMAS PRAIRIE AND THEN DESCENDED TO THE VALLEY BELOW ON ITS WAY TO REJOIN THE OREGON TRAIL 28 MILES WEST OF HERE.	US20US26US93 northeast of Carey
314	LEWIS CLARK STATE COLLEGE	WAS CREATED BY THE LEGISLATURE IN 1893 AS A TWO YEAR NORMAL SCHOOL TO TRAIN TEACHERS	US95 north of Lewiston	167, 176, and 314
317 UT	LAKE BONNEVILLE	20,000 YEARS AGO, THE LAND WAS UNDER WATER. NOT FAR TO THE NORHT, YOU CAN SEE THE OLD SHORE OF LAKE BONNEVILLE.	IS84 northwest of Tremonton	Eastbound Westbound
326	EMIGRANT ROAD	MORE THAN A CENTURY AGO, FUR TRAPPERS AND EMIGRANTS FOLLOWED AN OLD INDIAN TRAIL THAT CROSSED HERE ON ITS WAY TO OREGON.	US93 north of Twin Falls
329	SKI LIFTS	WHEN SUN VALLEY LODGE WAS BUILT IN 1936, UNION PACIFIC ENGINEERS DEVELOPED CHAIR LIFTS TO TRANSPORT SKIERS UPHILL	ID75 in Ketchum
338	OREGON TRAIL	IMMEDIATELY WEST OF HERE YOU WILL CROSS A SMALL CANYON THAT OREGON TRAIL EMIGRANTS REGARDED AS THEI R MOST DANGEROUS EXPOSURE TO INDIANS	IS86US30 west of Pocatello
339	EMIGRANT TRAILS	EARLY CALIFORNIA AND OREGON TRAIL RUTS-LEFT BY THOUSANDS OF EMIGRANT WAGONS AS THEY ASCENDED THIS BLUFF-STILL ARE VISI BLE BELOW THIS VIEWPOI NT	IS86US30 west of Pocatello
353	CASTLE ROCK	UP TOWARD CAMAS PRAIRIE, A ROAD GOES BY CASTLE ROCK AND OTHER ERODED GRANITE OUTCROPS THAT WERE LANDMARKS ON GOODALE'S CUTOFF, AN OREGON TRAIL ROUTE THAT CAME THIS WAY.	US20 east of Tollgate	305 and 353
371	RAILROAD TRESTLES	IN ORDER TO CROSS LAWYER'S CANYON AND OTHER CAMAS PRAIRIE GORGES A SERIES OF HIGH RAILROAD BRIDGES WAS BUILT IN 1908.	US95 north of Grangeville	163, 189, 371
375	OREGON TRAIL	INDIANS, TRAPPERS, AND EMIGRANTS WHO CAME THIS WAY BEFORE 1900 USED A MORE DIRECT ROUTE TO GET BETWEEN BOISE AND GLENNS FERRY. THEIR ROAD STILL CAN BE SEEN AT BONNEVILLE POINT 5 MILES FROM HERE.	IS84US20US26US30 southeast of Boise
379	BASQUE COUNTRY	IDAHO HAS A LARGE BASQUE COMMUNITY THAT PRESERVES ITS ANCIENT EUROPEAN TRADITIONS IN A NEW LAND OF OPPORTUNITY.	IS84US20US26US30 southeast of Boise
391 MT	CALDERA LOOKOUT	HIGH ON ISLAND PARK CALDERA'S WEST RIM, A 72-FOOT FOREST SERVICE LOOKOUT TOWER AFFORDS AN EXCELLENT VIEW OF THIS LARGE VOLCANIC FEATURE.	US20 northeast of Idaho Falls
396 MT	VOLCANIC CALDERAS	SOME 2,000,000 YEARS AGO, MASSIVE ERUPTIONS OF HOT ROCK BOILED FOR 60 MILES FROM THIS HIGH RIM ON ACROSS YELLOWSTONE PARK.	US20 northeast of Idaho Falls
411	COLLEGE OF SOUTHERN IDAHO	IN 1964, TWIN FALLS COUNTY VOTERS ESTABLISHED A COMMUNITY COLLEGE, AND JEROME COUNTY SOON VOTED TO JOIN THEIR COLLEGE DISTRICT.	US93 in Twin Falls	172 and 411
412	SHOSHONE HISTORIC DISTRICT	HISTORIC DISTRICT OF BRANCH RAIL LINES TO WOOD RIVER AND CAMAS PRAIRIE SERVED DISTANT FARMERS AND MINERS, WHILE A STAGE LINE TO SHOSHONE FALLS ACCOMMODATED TOURISTS WHO VISITED IDAHO'S FOREMOST NINETEENTH CENTURY ATTRACTION. USE OF LAVA ROCK FOR BUILDING CONSTRUCTION GIVES SHOSHONE CHARACTER.	US93 in Shoshone
428	THREE BUTTES	RISING ABOVE THIS LEVEL PLAIN OF LAVA FLOWS AND WINDBLOWN SOILS, THESE HIGH LANDMARKS ARE RECENT ADDITIONS TO IDAHO'S LANDSCAPE.	US20 west of Idaho Falls	428 and 436
430 MT	MURRAY GOLD FIELDS	AFTER PROSPECTING NORTH OF HERE FROM 1878 TO 1882, A.J. PRICHARD SHOWED A FEW FORTUNE HUNTERS WHERE TO FIND GOLD. MORE THAN A YEAR LATER A HORDE OF MINERS RUSHED THERE TO START EAGLE CITY	IS90 between Coeur d'Alene and Thompson Falls	252 and 430
434	BISON JUMP	BEFORE SETTLERS CAME TO IDAHO IN 1860, BUFFALO USED TO ROAM THROUGH THIS VALLEY. MOST OF THEM HAD LEFT HERE BY 1840	ID75 west of Challis
436	BIG BUTTE	TOWERING 2,500 FEET HIGH, TWO OVERLAPPING ROCK DOMES FORM A 300,000 YEAR-OLD BUTTE THAT DOMINATES THIS LAVA PLAIN.	US20 west of Idaho Falls	428 and 436
452 MT	PIERRE J. DESMET	ROMAN CATHOLIC MISSIONARY SERVICES BEGAN IN IDAHO ON SUNDAY, JULY 10, 1840, IN TETON VALLEY, FOLLOWED BY A MASS HELD NEAR HERE AT HENRY'S LAKE, JULY 23.	US20 south of Island Park
484	GALENA	AFTER WARREN P. CALLAHAN LOCATED A RICH LEAD - SILVER MINE HERE IN 1879, THOUSANDS OF EAGER TREASURE-HUNTERS JOINED IN A RUSH TO WOOD RIVER IN 1880	ID75 in Galena
491 MT	KOOTENAI TRIBE OF IDAHO	Kootenai tribe of Idaho was once part of the larger Kootenai Tribe situated in what is now Montana and Canada	US2US95 in Bonners Ferry	165 and 491
503	CHIEF POCATELLO	IN AN ERA OF EMIGRANTS, MORMON SETTLERS AND THE MILITARY, POCATELLO EMERGED AS A STRONG LEADER OF THE HUKENDUKA SHOSHONE.	US30US91 in Pocatello
508	MOUNT McCALEB	MT. McCALEB, NAMED FOR CIVIL WAR VETERAN AND LOCAL MERCHANT, JESSE McCALEB, IS THE PROMINENT 11,682 FT. PEAK VISIBLE NORTH OF MACKAY.	US93 in Mackay	508 and 509
509	GHOST TOWNS OF MACKAY, IDAHO	CLIFF CITY AND WHITE KNOB WERE BUSTLING MINING TOWNS ESTABLISHED WEST OF MACKAY IN THE LATE 1800S.	US93 in Mackay	508 and 509

Map

The blue dots, accompanied by their sign numbers, mark all Highway Historical Markers in Idaho.

Gallery

SCS Software blog (pre-release)

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