The Newberry National Volcanic Monument includes 50,000 acres of lakes, lava flows, and spectacular geologic features. The volcano itself is 20 miles in diameter and the caldera is 4 by 5 miles in diameter. We drove a steep, rough road with hairpin turns up the side of the volcano to Paulina Peak.
From the peak (7,985 ft) we marveled at the two lakes that were formed when pumice and lava deposits divided the crater/caldera in two.
...and savored beautiful views of the area.
The other part of this park that we saw is Lava River Cave, a mile-long lava tube that crosses under US97. We arrived late in the day, descended into the tube and walked about halfway through before we had to turn around or else spend the night there. The tube was lit only with our cheap flashlights and the occasional lantern rented from the ranger station. No time for a tripod, but here a couple of photos I found online.
Goodbye daylight! At least there were stairs and rails for part of the way.
This is waaaaay more light than we had, but necessary for professional photography:
Another unique experience that was great fun!
Newberry Monument site: www.fs.fed.us/r6/centraloregon/newberrynvml