their primary reason for billington is to trap and store melted snow and rainfall from southern colorado and northern new mexico. >> you also know for green chile. >> green chili. as a matter fact, the committeef hatch and the hatch valley has gotten its of the patented and copyrighted, no one can legally call their chili hatch chile unless it's grown in the hatch valley. they've gone to court over that. so it's a big deal. chile is king and not pecan is rising up close second is being king in about. >> where are we heading out? >> right now we're traveling down the valley from the north end to going down the center. we're going to go again close to the river. we are going to cross the rio grande and were going to stop by a roadside historic mark marker which basically is a monument to the signing of the gadsden purchase. >> we have pulled off literally into the dirt on the side of the road to see this small-market although it's tiny, it has a ag role in southwest history and american history. >> the u.s. goes to war against mexico 1846-1848. mexico loses and actually they lose, the mome