Giveaway for an Emriver Em2 river model with alpha modeling media. The Em2 is a highly portable stream table used to demonstrate river erosion processes. For more information on the Em2: Click Here Entry Methods: * Visit Emriver.com to Enter * Enter using Facebook * Visit Little River Research & Design on YouTube * Follow @EmriverModel on Twitter * Visit RiverScience on Reddit * Watch this Emriver Video * Follow Little River Research & Design on LinkedIn * Visit emrivermodel on Instagram * Refer Friends For Extra Entries