Big Agassiz is...well...big. Certainly in comparison to its little brother on the hill top.
Climbing here is dependent on a number of factors. For starters, being much lower-lying, the ground around Big Agassiz is debilitatingly swampy in the Spring or after rains.
At my last visit, there were some decent looking toprope anchor bolts. Inspect them before committing your life to them. Some clean gear backups may be available. Bring extensions.
No named routes are really spoken of here. One face of the rock is the most vertical and has the most potential. Check it out.
The approach trail to both rocks clearly distinguishes between your approach options for either. From Little Agassiz, you can descend by a different trail that will bring you down to Big Agassiz.
Weather station 4.1 miles from here
By Chris McNeil
From: Anchorage, AK
Mar 4, 2013
This block is also able to be gotten to on a good winter when the swamp it lays in freezes over.