Deep snow and confusing flagging tape are making hiking on Mount Riley tricky, say members of the local search and rescue team. Two hiking parties called for help after getting lost on the mountain last week.

Jonathan Truong, 23, a passenger off the cruise ship Ryndam, used a cell phone to call for rescue on the north side of the peak at 12:30 p.m. May 26 after becoming disoriented. Truong had a GPS unit and…