The Mountain Swim Series is excited to grow bigger and better in it’s fourth year, 2018! This series is designed to bring a new level of Open Water Swimming to the Rocky Mountain Region. With a prizes for the top three males and females in both wetsuit and non-wetsuit divisions, this series offers the opportunity to swim and race in the open water at over a mile high in elevation.

2018 will consist of four events.

The first event will be the Solstice Swim in Longmont, CO. In this event, participants have the option of swimming either a 1.2 or a 2.4 mile course.  This event is a great warm up for the Castle 10K at Lake Wellington.

The second event is the hugely popular Carter Lake Crossing in Berthoud, CO – an end-to-end three mile swim. This event is located at one of the most picturesque reservoirs on the front range. Carter Lake is excited to bring this event back in 2018.

The third event is new in 2018 and will be a trial of each participants skill and toughness.  "The Cliff" Backyard Ultra will be held at Wellington Lake, which is at approximately 8,000 feet.  Participants will be requried to complete a 1.5 mile loop each hour until they tap out or until 36 hours pass and they are forced into a swim off.

The fourth event will be the Chatfield Classic. This new event will be held at the Chatfield Gravel Pond and participants will have the option of swimming either the 1 mile course, the 2 mile course, or both.

All Mountain Swim Series events will be insured and supported by safety watercraft, lifeguards, and paramedics/EMTs, however, any person signing up for these events should be a competent swimmer and be able to consistently hold a 2:30 per 100 yard pace or faster.