
Targhee National Forest dominates this section of eastern Idaho, showcasing a landscape defined by the ancient geology of the Island Park Caldera. This 2023 survey illustrates an intricate drainage system feeding into the Warm River and North Fork Fish Creek, alongside prominent local elevations like Black Mtn and Snow Creek Butte. The map reveals a specialized network of forest infrastructure, featuring numerous timber-related routes such as Long Haul Rd and Log Haul 4 Spur 2, which indicate the area's ongoing importance for resource management. High-altitude meadows and ridges, including the namesake Big Grassy area, are accessible via a complex of specialized paths like Flat Canyon Trl and Trail Canyon, reflecting the dual use of these public lands for both industry and backcountry navigation.
37 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1955 · Ashton
USGS Topo · 1:250,000
1957 · Warm River Butte
USGS Topo · 1:62,500
1957 · Buffalo Lake
USGS Topo · 1:62,500
1958 · Ashton
USGS Topo · 1:250,000
1960 · Ashton
USGS Topo · 1:250,000
1964 · Hatchery Butte
USGS Topo · 1:24,000
1964 · Island Park
USGS Topo · 1:24,000
1965 · Snake River Butte
USGS Topo · 1:24,000
1986 · Latham Spring
USGS Topo · 1:24,000
1986 · Buffalo Lake NE
USGS Topo · 1:24,000