These grasslands are 2km in circumference and extend along the west of Yukawa River, which flows from Lake Yunoko.
Its area is about one-quarter of Senjogahara.
From early summer into summer, you can view clusters of buttercups (June to July), Spiraea salicifolia (July to August), and Nikko thistles (July to August), while in the autumn, you can see the yellow leaves of Mongolian oak as well as the beautiful scenery of autumn leaves and grass.
The single Japanese white birch tree growing in the middle of the grasslands is known as "the Lady of Odashirogahara" and is beautiful, attracting an endless stream of people looking for photographs.
There are hybrid buses to Odashirogahara from late April to November.