https://wildernessawareness.org/ - I went there over 15 years ago now and did what is now called The Immersion adult program. The capture the flag type event was around 4 days long, there was another capstone experience that was around 4 days on a survival trip. I think they probably still do these activities but I'm not certain. I thought it was a great program for me. They also have programs for kids and teens including summer camps. I've heard great things about the teen wolf tracking expedition and I imagine their other programs are great too.
There are a few other wilderness schools in the area, some of which may have similar activities, so I am not sure if that is the same one the GP was referring to.
There are a few other wilderness schools in the area, some of which may have similar activities, so I am not sure if that is the same one the GP was referring to.