There are two lakes at Highline Lake State Park, Mack Mesa Lake and Highline Lake. Highline Lake is open to power boating, jet skiing, water skiing, sail boating, sailboarding and paddle boards from March 1st, lake conditions permitting, through September 30th.
For current boating information, please contact the park at 970-858-7208, or check our Conditions page!
Highline Lake State Park is part of the fight to curb the spread of aquatic nuisance species (ANS)!
For more information about this program, choose the Boating Pages. All required watercraft, trailered or not, entering Highline Lake will be inspected for ANS , and all boats with inboard or inboard/outboard motors or even one ballast tank will undergo decontamination, unless there is a seal on the boat.
Upon request, watercraft leaving the lake will be inspected and sealed. The seal must be kept in place and the receipt kept. Before the next launch, the receipt must be given to an Inspector, who will remove the seal from the boat. If no Inspector is available and there is a drop box present, both seal and receipt can be dropped into the box before launching the boat. This can save time on the next launch!
On weekends May through Labor Day, Highline Lake regularly reaches boat capacity, requiring boats to wait to enter the water until one leaves. There is rarely a wait on weekdays and evenings, though, so bring your boat to Highline Lake after work, or on your weekday off!
Park rangers patrol Highline Lake regularly to provide emergency assistance and carry out boat safety inspections on the lakes within the park. All boats must carry the appropriate safety equipment outlined in Colorado boating regulations and statutes. Since underwater hazards may not be marked, use caution when boating.
All trailered boats must be inspected before entering the water at Mack Mesa Lake!
Mack Mesa Lake is restricted to paddle boards and hand or electric-motor powered boats only. No gasoline or diesel engines are allowed to launch on Mack Mesa, even if not turned on.