Mount Iino, Mountain peak in Marugame, Japan
Mount Iino is a mountain peak in the Marugame area with a conical shape that rises to about 421 meters above sea level. Several hiking trails lead across the slopes, with observation points placed along the routes for views of the surrounding region.
Mount Iino is a monadnock, a residual hill shaped by long erosion rather than a volcano, though its upper slopes are made of andesite lava erupted about 15 to 12 million years ago during the Setouchi volcanic activity. It is counted among the Seven Fuji of Sanuki and was later selected for the New 100 Famous Japanese Mountains and the 100 Famous Mountains of Shikoku.
Saigyo, a Heian-period monk-poet, wrote of Mount Iino in the Tamashū: "In Sanuki they call this Fuji, the mountain of Iino; no morning passes without smoke rising." The haiku poet Takahama Kyoshi composed a verse about the mountain in 1949, and a stone inscribed with it stands at Marugame Castle. Emperor Showa's 1922 verse about seeing clouds on Sanuki's Fuji is not at the summit.
Visitors can hike from several starting points, with trails clearly marked and routes available at different difficulty levels. It is helpful to wear sturdy footwear and bring water, especially on warmer days.
A large rock formation near the summit carries a legend about a giant named Ojomo whose footprint is said to be marked in the stone. This is a local landmark that hikers often discover during their ascent.
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