Forest City swept Algona in straight set on Wednesday by scores of 28-26, 25-10 and 26-24.
Kelsey Koch had 16 kills and 18 digs and Brea Dillavou had 35 assists for the Indians.
Forest City will play Clarion-Goldfield-Dows on Tuesday at 7 p.m. in the Class 3A Regional Quarterfinals.
Other Volleyball Scores:
Clarion-Goldfield-Dows 22-25-25-25, Hampton-Dumont 25-12-16-15
Clear Lake 20-21-25-25-15, Garner-Hayfield/Ventura 25-25-15-17-11
Osage 25-25-25, Crestwood 20-14-8