ACES Community Response to COVID-19

To reduce the spread of the COVID-19 virus, ACES is making several changes to our site open hours, programs, and events effective March 14, 2020. Please read below for details and stay tuned to this page for additional updates as we learn more. ACES will continue to follow preventative measures and employ proactive strategies to promote the safety of our community, visitors, and staff. Together, we will get through this challenging time and soon return to the good work of protecting our planet and educating for environmental responsibility.

ACES Site Closures

ACES is closing all three of our sites – Hallam Lake, Rock Bottom Ranch, and Catto Center at Toklat – until further notice, including the nature preserve at Hallam Lake. 

ACES Programs & Events

Please note the following adjustments to ACES’ community programming and events:

  • Wild & Scenic Film Festival – POSTPONED (Click here for refund information)
  • Nature & Me Parent-Child class – CANCELED
  • Spring Ranchers Spring Break camp – CANCELED
  • Winter Farm Tour – CANCELED until further notice


ACES Naturalist Tours

All Naturalist-guided tours and Winter Wild Things programming are suspended until further notice. This includes Aspen Mountain snowshoe tours, Snowmass snowshoe & ski tours, Ashcroft snowshoe tours, and Hire a Guide private tours.