By Paulla Rich Estes Unlatching Dinah’s red leash, I follow her along the chain-link fence that wraps a rectangle around acres of yuccas, piñons, and patches of pale grass rooted in sand. Dinah sniffs a spot where flora has been cleared to create a path and her canine brain logs previous visitors that stopped to pee here, here, and here. A frigid April wind ripples off New Mexico’s Jemez Mountains and I zip up my jacket to my chin. Tears sting my eyes because of the horizon I can see no matter which way I turn. It’s why I came…