The route shown here is a 10-mile point-to-point route beginning at the Lexington Reservoir and running mostly downhill into the San Jose metro area. It's possible to tailor the route's distance to accommodate your needs, with one popular ride itinerary being an out-and-back beginning in San Jose. You can also walk or run a much shorter route, beginning from any number of access points along the trail.

Sources: https://parks.sccgov.org/santa-clara-county-parks/los-gatos-creek-county-park