River Towns Plein Air (RTPA) is now in its 5th year.  It is central Pennsylvania's premier outdoor painting competition sponsored annually by Marietta Art Alive, the arts-in-action all-volunteer team of Rivertownes PA USA, a non-profit organization dedicated to advancing the art, culture and history of lower Susquehanna Valley river towns.  Artists compete for cash awards and exhibit their artwork during the culminating show and sale which attracts hundreds of tourists and art collectors to our region.A