Lake Walcott State Park

PARK UPDATE

Cyanobacteria Health Alert

Lake Walcott, Blaine County

A cyanobacteria health alert has been issued for Lake Walcott in Blaine County. Cyanobacteria harmful algal blooms (HABs) pose a high risk to the health of pets and livestock and can cause illness in humans, especially small children.

Cyanobacteria are a natural part of Idaho’s waterbodies, but when conditions are right, they can multiply rapidly, or “bloom,” and release toxins into the water. Exposure to cyanotoxins through skin contact or ingestion can cause skin irritation, upset stomach, and more serious symptoms. Effects can be more serious in animals since they are more likely to drink the water.

Blooms don’t all look the same; they may look like mats, foam, spilled paint, or surface scum and have a foul odor. Use caution when recreating in and around water. When in doubt, stay out and keep pets out of the water.

Summer/Fall 2026

Lake Walcott water levels are lowering for the season. The boat ramp handling docks and kayak launch docks are currently still in place. Please check before launching and loading equipment. Use caution around the shoreline and boat ramps.

2026 Events

September 19, 2026 – Walcott Open Disc Golf Tournament. The disc golf course will only be open to participants in the tournament.

Construction Notice – Fall 2026

Construction for the park-wide potable water system upgrade will begin in Fall 2026. During the construction period, the campground will close and day-use pavilions will be unavailable for reservation. More information and specific closure dates will be announced once the construction schedule is finalized.