Good stuff right there.
What was you solar and rig set up?
My buddy brought a 100W solar panel that we connected to my Flint Hills Radio solar charge controller (
http://ki0bk.no-ip.com/~pwrgate/LLPG/Site/Solar.html ) charging a 105 AH AGM battery. I think the battery may have lasted without charging, but it was nice to know it was always topped off.
Our two primary radios were my FT991 w/ Heil Pro 7 headset and my buddy's FT817ND. He was making CW & SSB contacts at 5 watts (and a few with 2.5 watts on its internal battery). I was working nearly everyone I could hear with 100 watts on the FT991. Operating casually, we ended up with 142 QSOs. 20 and 40 meters were open and packed the whole time. 15 meters was strong and very busy mid-day on Saturday and 10 meters was busy enough that it was worth checking when I was tired of the QRM on 20 / 40. 6 meters was open for a bit Saturday morning, and a shorter period Sunday before we tore everything down.
I left the FTM400 in the truck most of the time (beaconing APRS) and listening for 146.52 traffic on an external speaker. On 146.52 and a vertically polarized yagi, we had no difficulty talking into Vegas, Pahrump, Armagosa Valley and one chap who said he was at work somewhere NNE of 95 / 160 (

).
We had my Cushcraft R8 on a 10' antenna hitch mast for 6 - 40 meters and my home made mag loop for 40 & 20 meters (QRP) for the FT817ND. A 4 el horizontal yagi and a 170 watt amp netted a few SSB contacts on 144.200, but just Vegas and Pahrump. I thought we'd do better with it (i.e. Utah / Phoenix, since we were at 6000').
I set up a 124.5 end fed with a 9:1 unun (for 80 / 160), but forgot my good auto tuner at home. I couldn't get the match good enough for the FT991's internal tuner, so instead of staying up all night on 80 / 160, we got some sleep. I brought a 4el LFA for 6 meters, but just used the Cushcraft vertical since it has an omnidirectional pattern.
A few important lessons learned:
* Don't forget important stuff at home thinking you'll remember to unhook it from the home antenna system at 5:00 AM (outdoor base mounted tuner)...
* Don't bring too much stuff... simple was effective. Too many pieces loaded / unloaded and not used.
* QRP and 5 watts can work wonders, even with simple antennas.
* Field Day is more fun when it's 75 degrees / 50 degrees!