ended up with a spot with a bluff (and power lines) to our west, and out of sight of the highway. According to the US Public Lands app that Chris and Cherie of Technomadia developed, it's on the BLM side of the line, but just barely.
While we're not protected from the north wind and resulting dust that sprung up in the afternoon, we do have a view of the Wildlife Refuge in the distance.
The phones are showing 0 bars of Verizon 3G, but we're getting 3 bars of 4G data using the antenna and amplifier. We'll call this home until Monday morning when we'll continue our trek to the north.