Henry Warm Spring

Documentation record: Henry Warm Spring has no documented pool and no verified public access information. This page records what the official geothermal registries say about the spring, and nothing beyond it.

Henry Warm Spring appears in the federal thermal springs list at 86 °F, on the Blackfoot River in Caribou County, just southwest of Blackfoot Reservoir. The U.S. Geological Survey’s GEOTHERM file carries the same spring in T6S R42E Sec 8 at 30 °C, which is 86 °F exactly. Two registries, one spring, one point, agreeing on the temperature to the degree. That agreement is the record: the state geothermal dataset does not carry Henry at all, and no other source consulted adds a fact to the two rows.

Read this page as a documentation record for a real, inventoried spring in river-bottom ranch country, not as a destination guide. No pool, development, visit, or public access is documented anywhere for Henry Warm Spring, and no agency manages it as a recreation site. Its value is the record itself, and this listing is deliberately as short as the record is.

Soak Stats

Place Information

Location and Access

The spring’s inventory point sits on the Blackfoot River at the south end of the Blackfoot Reservoir country, about two miles southwest of the point the registries give for Blackfoot Reservoir Warm Spring and roughly 18 miles north of Soda Springs in a straight line. The small Henry community and the Henry quadrangle carry its name. It is settled river-bottom country, farms and ranches along the river, not public backcountry, and no road or trail to the spring is published anywhere.

Beyond that, this listing deliberately does not go. No published route to the spring exists, no source describes a visit, and ownership of the section the spring rises in is not confirmed in any source consulted. The neighboring reservoir’s land story is its own and is not borrowed here: nothing consulted ties this parcel to the reservoir project or to any other manager. The coordinates are public record in the registries linked above, but a set of coordinates is not an invitation, and on land of unconfirmed ownership it is not permission. Anyone with a genuine reason to visit should establish land ownership and, if the land is private, get the landowner’s permission first.

Is There a Soak Here?

The honest answer is that no source describes one. No soaking guide covers this spring, no trip report or photograph of a visit exists in any source consulted, and the aggregator pages that carry its name repeat the registry row and nothing more. Both registry rows descend from the geothermal survey era of the 1970s and early 1980s, and no later survey, guide, or dataset consulted adds a newer observation of the spring. At 86 °F the source water is genuinely warm, the temperature of a spring a ranch valley might use quietly, but nothing suggests it was ever developed as a bathing place, and nothing documents that anyone has soaked in it. If a landowner confirmation, a county record, or a credible field report ever surfaces, this page will be updated.

History

There is no settler story to tell here, and this listing does not invent one. Henry Warm Spring enters the written record through the geothermal surveys and never leaves them: the federal list carries it at 86 °F on the Henry quadrangle, and GEOTHERM holds it as record 0025208, immediately after Blackfoot Reservoir Warm Spring (record 0025207) in its indexes, the corridor’s two springs numbered one after the other. GEOTHERM’s own latitude sort prints the name once as “Henry Warn Spring,” a typo in the index rather than a second spring, the Pescadero misspelling pattern in reverse: one record, two spellings, across the report’s two sorts.

The Henry name itself belongs to the place first, the small community and quadrangle in the Blackfoot River country, the way Pescadero’s name belonged to a rail siding before it belonged to its spring. Who applied it, and whether the spring was ever used by the people who lived beside it, is not verified in any source consulted. The two registry rows are the whole file.

Nearby Hot Springs

The nearest full listing is Blackfoot Reservoir Warm Spring, a separate registry record about two miles northeast on the reservoir’s west shore, cooler water at 72 °F, published on this site in full. The registries number the two springs one after the other, but they are different springs on different water, and none of the reservoir listing’s facts belong to this record. A third corridor record, Blackfoot River Warm Spring above the reservoir, has no listing on this site. More South-East Idaho hot springs →