$B!!(JThe late Mr Tsunekawa Toshio, a student of plants in Toyohashi City, found Mikawa Baikeiso here , alpine and rarely found in this area.
$B!!(JHe researched the whole area of Imou. He found out that Imou Bog is a treasure house of precious natural environment and groups of plants.
$B!!(JIn the same year Mr Tsunekawa took the late Mr. Nozawa Tozaburo, vice president of Toyohashi Cultural Association at that time, to Imou Bog.
$B!!(JMr. Nozawa realized the importance of careful preservation of this area.
$B!!(JAfter failing in persuading Toyohashi City to purchase the land around Imou Bog for preservation, Mr. Nozawa himself purchased private part of Imou Bog for sale at that time.
$B!!(JToyohashi Young Men's Assembly donated ties for footpaths in Imou to protect it from being trampled down. Mr.Tsunekawa asked Toyohashi Alpinist Club for help with protection of the bog.
$B!!(JMr. Natsume, president of the Alpinist Club of Toyohashi, and four other people worked for completion of first footpaths on the ties.(1967/7/23)
$B!!(JThe student assembly of Toyooka Junior High School, which is near Imou marshland, voluntarily started their actions for preservation and cleaning of Imou Bog.
$B!!(JToyohashi City petitioned to the authorities concerned of Aichi Prefecture as to making Imou Marshland public property and its preservation.
$B!!(J(An explanation board, a directional board and a set of table and bench were provided by Toyohashi City)
$B!!(JToyohashi City entrusted the preservation patrols around the area to Toyohashi Natural Footways Promoting Council. Patrolling is still made more than 20 days a month.
$B!!(JProtective fences were set for conservation of the plants in the bog by Aichi Prefecture.
$B!!(JA public parking lot was prepared for the visitors of the bog by the city.
$B!!(JThe area was designated as natural asset of Toyohashi City.
$B!!(JThe footpaths of ties were entirely removed. Work for making new footways started. (Completed in March, 1992)
$B!!(JImou Bog was redesignated as prefectural natural asset from the former city asset.
$B!!(JAnother public parking lot was made for the visitors of the bog.