Tuesday Trail Running HIIT workout (50 minutes)

Did FOUR five minute trail running intervals between 5-10 minute walking intervals. Then, discovered this great soft grassy hill on the cross country trail (which I knew was there, but forgot) that would be great for 1-2 minute HIIT intervals to get my HIIT workout in for the week. Did 4 HIIT intervals of 1-2 minutes each at the end of the workout.