Village Masak of Tyuni, Dehradun comes under state UTTARAKHAND. This is situated 33 kms far from city CHAKRATA. Total Population of Village is 894 and household count is 94. For Education Village has facility of Govt Primary, Govt Middle, Govt Secondary, school.For higher education village also has .Village also has nearby education facility of .For health care village also has .Nearest water sources are Tap Water-Treated, Tank/Pond/Lake. Waste water flows by closed Drainage.