Antenna Array West of Amarillo, Tx.

I'm traveling across the country, and last night I went through Amarillo, Tx. on I-40. Just west of Amarillo and north of I-40, there is a long array of antennas which appear to not be as high as traditional radio towers. This array is at least 2-3 miles in length. I couldn't find a reference here on ATS on it, and I'm wondering if anyone knows what it is. I haven't googled it, I just came here first, checked, and thought I'd ask the membership. I'm hoping to hear from a local about it. I'll do some cursory research, and if I find anything, I'll post it here.