Hi there Roy,
Only been there once, had a hard time finding it myself. Had to stop a policeman, and ask him where it was at. I was looking for a regular type casino. To my surprise Sierra Sid's Is ACTUALLY A TRUCK STOP. With a small casino in the truck stop restaurant/store/casino,etc.; in the same building. Located on the Eastern edge of Sparks, Off Interstate 80.
TO GET THERE: Leave the Reno Hilton-north to I-80---east on I-80(cannot give you millage)but, not extremely far on I-80. You will see John Ascuaga's Nugget; on the right and Victorian Square and the Silver Club on the left. After passing these three places--start watching for Sierra Sid's Truck Stop on the Left side Of I-80. I think (but not positive) It's located at the intersection of I-80 and McCarran Blvd.
Or if still having trouble finding Serria Sid's. Instead of driving around in circles(like I did). Do what I should have done sooner "ask someone"; I found a helpful policeman.

I think/hope I told you right. I will be back in Reno after the convention in June. I DO plan to go to Serria Sid's and find out for sure. As well as play the machine--if it is still there-. I know what to look far this time.

Good Luck,

Dan