Loading view. Events Lake John/Cowdrey Lake Ice Fishing Derby Today Upcoming Upcoming Select date. January 2022 Sat 22 January 22 @ 6:00 am – 5:00 pm MST Recurring Lake John/Cowdrey Lake Ice Fishing Derby lake john/cowdrey Walden, CO Placing for prizes based on length plus girth of trout caught by individual during two-day contest. One […]