A National Historic Landmark. Built in 1988. Listed on the National Register of Historic Places in 1966.
From the record
“The City of Rocks National Reserve, also known as the Silent City of Rocks, is a United States National Reserve and state park in south-central Idaho, approximately 2 miles (3.2 km) north of the border with Utah. It is widely known for its granite rock formations and rock climbing.”
Wikipedia article City of Rocks National Reserve, CC BY-SA 4.0.
One of 7 National Register listings published here for Cassia County · listed in 1966 · category: District · built in 1988 · a National Historic Landmark.
National Register reference number.66000308- the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.
Fires near this property
12 since 1992
Regional context, not property-specific
evidence. The
federal wildfire occurrence database
lists 12 fires within 5 miles of City of Rocks
between 1992 and 2016, burning about 1,072 acres in total. 3 started naturally. None was recorded as arson.
Distance is straight-line from the map coordinates, so a fire counted
here may appear on a neighbouring settlement's page as well.
Reported cause
Fires
Missing data/not specified/undetermined
4
Recreation and ceremony
3
Natural
3
Equipment and vehicle use
2
The most recent of
them, most recent first, with the day each was reported and the service
that recorded it.
Regional context, not property-specific
evidence. The federal mineral resources record lists
19 workings within 5 miles of City of Rocks: 9 unknowns, 8 occurrences, 1 past producer, 1 prospect.
None of them still produces. What was taken out: REE, Titanium, Iron, Garnet, Zirconium, Beryllium, Titanium, Iron, Garnet. Distance is straight-line from the
map coordinates, so a quarry counted here may appear on a neighbouring
settlement's page as well.
Regional context, not property-specific
evidence. The National Weather Service names
Almo, the town this property stands in, in 10 storm reports between 1996 and 2025: 4 hail, 2 heavy rain, 2 thunderstorm wind, 1 flash flood.
No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office
filed it, from the NOAA Storm Events Database, and each date
opens the federal record of that event.
Cassia County was declared a natural disaster area by the USDA due to barley crop loss in August from heavy rains. Eastern Idaho lost about 64 million dollars of barley crops due to the rains with a portion of that occurring in Cassia County.
No historic map-sheet match is published
for this property yet. That does not mean no map exists. This record needs
a coordinate-quality review before it can be joined to a sheet boundary.
Browse the county's mapped places while that work is
pending.
Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.
Block