Rock Lake Improvement Association

06/17/2026

✨Remember when summer nights seemed to be filled with fireflies?✨

Many people say they don't see as many fireflies as they used to. While there are several reasons for their decline, one of the simplest ways we can help is by reducing artificial light at night.

💡 Fireflies use their flashes to communicate and find mates. Artificial light can drown out those signals, making it harder for them to court one another and reproduce.

Fireflies are active in Wisconsin from May through August, with peak season from mid-June through late July.

Lights Out Wisconsin is encouraging everyone to turn off or dim non-essential outdoor lights and close window shades from sunset to sunrise. You can also help by:
🍂 Leaving the leaves
🚫 Avoiding pesticides
🌿 Keeping some natural areas in your yard

Have you seen any fireflies yet this year? Let us know in the comments! ✨
📲 Share this post with someone who misses seeing more lightning bugs around.

06/16/2026

Friends of Korth Park recently hosted Jefferson County Head Start for nature themed activities. They read stories, sang, danced and planted native wildflowers at the new park sign. Thanks to Friends of Korth Park environmental educators, Jefferson County Parks and the staff and students for adding beauty and wildlife habitat.

05/22/2026

Join RLIA & DNR specialists for an interesting tour of the fish hatchery.
Thursday, May 28 - 10:30 am For more information and to reserve a spot, call or text (920) 253-6323.

05/16/2026

Dame’s Rocket is in bloom. Thought it has an attractive flower, it is HIGHLY INVASIVE, and should be removed. It is easily identified by its 4 petals and opposite leaves. Often mistaken for phlox, which has 5 petal flowers and blooms later.

05/13/2026

Join RLIA & DNR specialists for an interesting tour of the fish hatchery.
Thursday, May 28 at 10:30 am. For more information and to reserve a spot, call or text (920) 263-6323.

04/28/2026

Friends of Korth Park, Jefferson County Parks, Legendary Lake Mills & RLIA are co-hosting this Saturday. Join us!

04/22/2026

02/03/2026

The WI DNR has authorized a new Water Level Order for Rock Lake effective immediately!
See rocklake.org for details

01/26/2026

It only takes one teaspoon of salt to permanently degrade freshwater ecosystems.
WI Salt Wise Week starts tomorrow.
We can all make a difference!

01/26/2026

Wisconsin Salt Wise Week begins tomorrow!

Did you know?
It only takes 1 teaspoon of (ice melting) salt to pollute 5 gallons of water to a level that is toxic to freshwater ecosystems!