Here is a short list of dump stations for RV's I am sure there are plenty more but i just don't know of them. Maybe some other seasoned RV'ers can chime in.

Halfway between Terre Haute and Lincoln Park Speedway

Pilot Travel Center 4376 North SR 59 Brazil

Not sure which one is closest to the track (Tri-state)

Pilot Travel Center 1042 East Warrenton Road Route 2 Box 109E Haubstadt
Flying J 844 East 1250 South Haubstadt


At 465 and St Rd 37 (South Indy)

Flying J 1720 W Thompson Rd Indianapolis



Other Indiana locations that I know about

Flying J 1401 Ripley Street Lake Station
Flying J 520 South State Road #39 I-65 Lebanon
Flying J 3105 Doyle Road New Haven
Flying J 5300 South State Rte. 3 Spiceland
Flying J 4982 N. White Street Whiteland