Here are the steps on how to take the Metrolink train from Los Angeles Union Station to Riverside:
1. Go to Los Angeles Union Station. The station is located at 800 N Alameda St, Los Angeles, CA 90012.
2. Purchase a Metrolink train ticket. You can purchase tickets online or at the station. The ticket price is $10.75 one-way.
3. Board the Metrolink train. The train departs from Track 11 at Los Angeles Union Station.
4. Get off the train at Riverside-Downtown station. The station is located at 3991 Market St, Riverside, CA 92501.
Once you arrive at Riverside-Downtown station, you can take a taxi or Uber to your final destination.