Went to South Park yesterday to pick up some things from our cabin/home there.
The 11 mile Facebook rangers post Bionic Man put up is accurate.
I agree, late April or early May opening.
A lot of the snow has melted but still in the shaded or north areas.
At our place the temps have been around 32 in the mornings with highs in the low 60's.
Today at 530 am the temp was 39.