MASON COUNTY — The following is weekend activity of the Hart post of the Michigan State Police: Thursday, Jan. 15, 2015: – 7:20 p.m., car-deer crash, Fountain Rd. and US-31, Sherman Twp. – 7:39 p.m., domestic assault, 5000 block of N. Williams St., Fountain. Friday, Jan. 16, 2015: – 6:40 p.m., car-deer crash, Free Soil Rd. and Custer Rd., Free…