Red Willow WMA has Merriams, Harland County Resevoir has both Merriam, Hybrids, and Rio's. I took 2 Merriams there a few years ago, passed some hybrids/rios. Ton of birds in both places, finding them is no problem. Most Merriams at Harlan County were on the south side of the lake where there are rolling plains. As far as distance from you, map it.