The bad-tempered sharp reservoir of writing brush lies in the right of department the white sound moustache of flag arranges 7.3 kilometers of the north, the medium-sized reservoir, guide forest river Huo, enter the bad-tempered favourable lake of the writing brush and form the reservoir. Belong to comprehensive irrigation works such as preventing flood, irrigating, generating electricity, breeding fish, amusement,etc.. Built up in 1997, the capacity of reservoir is 92,500,000 cubic meters, the dam long 1000m, the dam high 18m. The reservoir is enclosed with hills on three sides, face 111 national roads. Around the lake is the beautiful grassland or sparse woods grassland, the lake water is limpid, the pure white jewelry of sandy beach of lake bank, suitable for swimming, row the boat, amusement activity. Has already had the sightseeing boat in the lake, there is this visit.