Viking Opener at Spring Lake on Saturday

Runners will fill the paths around Spring Lake in Santa Rosa on Saturday. (PD file photo).

The trails around Spring Lake in Santa Rosa will be packed with prep runners Saturday for the Viking Opener Cross Country Invitational.

Montgomery High plays host to the event featuring nine races, beginning with junior high competition at 8:30 a.m. and concluding with the top high school boys’ race about 11:45 a.m.

The hilly 2-mile course is a shorter version of the 3-mile route Sonoma County high school leagues run on during the cross country season, including championship meets.