Solitary Geyser is indeed well separated from others in the Upper Geyser Basin, a quarter of a mile north and 120 feet above the nearest springs, on Geyser Hill. The closest approach is along the west section of the
Observation Point Trail, which climbs through pine forest, close to the edge of an open area - the lengthy run-off channel produced by the geyser. Activity was greatly increased by the 1915 construction of a diversion channel to funnel water to a nearby swimming facility; although long since removed, the spring continues to erupt to heights of a few feet every six to ten minutes. The geyser occupies a large vent, over 30 feet across, filled by clear blue water and surrounded by extensive, colorful depositional terraces and sinter formations.
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map of the Upper Geyser Basin