Notes: This course uses the initial 5-7K of the Theodore Wirth trail system, then breaks off the Theodore Wirth trails south of the chalet, near the railroad underpass on the far east side. The trails wind southward through the woods (and over some big hills), before hitting Brownie, Cedar, Lake of the Isles, and Lake Calhoun. Mpls Park Board grooms the trail system. Park at Theodore Wirth or Wirth Beach.