1900s (20th Century) Maps of Island Park, Idaho
Explore 12 historic maps of Island Park from the 1900s (20th Century). These maps offer a rare glimpse into what life looked like during the 1900s — showing old roads, neighborhoods, homes, and landmarks that have changed or disappeared over time.
Whether you're researching your family's past, planning a metal detecting trip, or studying how Island Park's landscape evolved across the 1900s, these high-resolution maps are a powerful tool for exploring the history of this region.
- Focus on a specific era: All maps on this page are from the 1900s, giving you a focused view of this time period.
- See what’s changed: Compare century-old streets, trails, and buildings to today's modern landscape using overlays and satellite layers.
- Research with precision: Use these maps for genealogy, historical research, land use analysis, or educational projects.
- View, download, or print: Maps are fully viewable online in high resolution, and can be downloaded or printed for your own records.
Start exploring Island Park's history through authentic maps from the 1900s. This is your window into the past.
Island Park, ID maps
(12)- 1955 Map of Ashton, 1967 Print
1955 Ashton1967 Print · USGSThe Greater Yellowstone ecosystem is captured here during the mid-1950s, showing the high plateaus and remote gateway towns of Idaho and Montana. Researchers can trace the Union Pacific line to Ashton or locate small settlements like Squirrel and Grainville.4 unique versions available - 1958 Map of Ashton
1958 Ashton1958 Print · USGSGreater Yellowstone and the eastern Idaho borderlands appear here in the mid-1950s as rail and road networks connected remote mountain basins. Trace the Union Pacific route through Ashton or locate early outposts like Last Chance, Squirrel, and West Yellowstone. - 1960 Map of Ashton
1960 Ashton1960 Print · USGSThe Idaho-Montana-Wyoming borderlands at the dawn of the sixties show a landscape defined by the Continental Divide and early wilderness tourism. Genealogists and historians can trace rail-stop settlements like Trude Siding, old outposts like Warm River, and early lodging at Snowball Inn. - 1964 Map of Island Park, 1965 Print
1964 Island Park1965 Print · USGSEastern Idaho was a landscape of federal forestry and growing tourism in the 1960s. Genealogists and historians can trace the foundations of local recreation at the Island Park Reservoir, Macks Inn PO, and the Union Pacific rail corridor.3 unique versions available - 1964 Map of Island Park Dam, 1966 Print
1964 Island Park Dam1966 Print · USGSFremont County, Idaho, is shown in the mid-1960s during a period of burgeoning outdoor recreation and water management. Researchers can trace ranching and reservoir life through features like McCrea Ranch, the Island Park Dam, and I P Bills Island.3 unique versions available - 1964 Map of Targhee Pass, 1966 Print
1964 Targhee Pass1966 Print · USGSThe high alpine country of the Idaho-Montana border comes alive in this mid-century survey of the Continental Divide. Trace early mountain routes through Targhee Pass, discover the location of the Targhee Cem, and see the footprint of the ski lift at Lionhead.4 unique versions available - 1964 Map of Targhee Peak, 1966 Print
1964 Targhee Peak1966 Print · USGSThe Idaho-Montana borderlands at the Continental Divide are captured here in the mid-1960s, showing the high-country interface between three National Forests. Genealogists and historians can trace family-named outposts like Wild Rose Ranch and Staley Springs along the northern shores of Henrys Lake.2 unique versions available - 1964 Map of Big Springs, 1966 Print
1964 Big Springs1966 Print · USGSBig Springs and the surrounding Idaho forest lands are captured here in the mid-sixties as the region balanced railroad industry with mountain recreation. Researchers can trace the Union Pacific line, locate the Big Springs Airstrip, and explore the high country around Mount Two Top.2 unique versions available - 1964 Map of Last Chance, 1966 Print
1964 Last Chance1966 Print · USGSHenrys Fork and the surrounding Targhee National Forest are captured here in the mid-1960s, a time of active ranching and emerging river recreation. Genealogists and researchers can trace the roads around Last Chance, the historic Railroad Ranch, and the Osborne Bridge.3 unique versions available - 1964 Map of Henrys Lake, 1972 Print
1964 Henrys Lake1972 Print · USGSThe Idaho-Montana border country is documented here in the early 1960s, a time when ranching life and mountain recreation coexisted. Genealogists and historians can trace local landmarks like Targhee Cem, the Johnson Ranch, and the Lionhead Ski Area.2 unique versions available - 1989 Map of Ashton
1989 Ashton1989 Print · USGSEastern Idaho at the end of the 1980s is captured here as a landscape of river-fed agriculture and high-altitude wilderness. Researchers can trace the Union Pacific line through Ashton and find old settlements like Kilgore and Idmon near the Targhee National Forest border.2 unique versions available - 1993 Map of Hebgen Lake
1993 Hebgen Lake1993 Print · USGSThe high mountain passes and vast river basins of the Montana-Idaho border come into focus in the early nineties. Genealogists and historians can trace the remote settlement of Lakeview and the development of West Yellowstone near the Red Rock Lakes National Wildlife Refuge.2 unique versions available
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