![Sandhill cranes that were frequent visitors to the CPAC group. Image taken in the summer. [Image credit: J. Hollowed]](https://cpac.hep.anl.gov/wp-content/uploads/sites/39/cache/2018/01/sandhillcrane1-scaled/3674870090.jpg)
Sandhill cranes that were frequent visitors to the CPAC group. Image taken in the summer. [Image credit: J. Hollowed]
![One of the sandhill cranes from the previous image. This photo was taken during the autumn; note the color change compared to summer. [Image credit: J. Hollowed]](https://cpac.hep.anl.gov/wp-content/uploads/sites/39/cache/2018/01/sandhillcrane2-scaled/1573574885.jpg)
One of the sandhill cranes from the previous image. This photo was taken during the autumn; note the color change compared to summer. [Image credit: J. Hollowed]

Getting ready to observe South Pole Telescope discovered galaxy clusters at Las Campanas Observatory in Chile. Image credit: L. Bleem

Preparing for another night of observations of SPT clusters! The ESO La Silla Observatory is in the distance. Image credit: L. Bleem

The 6.5 m Magellan/Baade Telescope mirror (with staff member L. Bleem for scale). Photo Credit: M. Bayliss
![Katrin points to LSST DESC Data Challenge 2 simulations running on most of Theta [Image Credit: S. Habib]](https://cpac.hep.anl.gov/wp-content/uploads/sites/39/cache/2018/09/heitmann_lsst_theta_aug_2018-scaled/2509716129.jpg)
Katrin points to LSST DESC Data Challenge 2 simulations running on most of Theta [Image Credit: S. Habib]

CPAC post-lunch, clockwise from bottom left, J.D., Patricia, Malin, Martina, Hillary, Lindsey, Amy L., Nick, Matt, Katrin, Tom, Amy B. (Salman represented by half-eaten apple)