05/21/2026
Whether you are headed to Diaz Lake in Lone Pine, the high alpine waters of Rock Creek, or the legendary Crowley Lake, new watercraft laws are now in effect across the Eastern Sierra.
Invasive Golden Mussels are a severe threat to our region. To protect our pristine waters, we have new requirements for all boaters:
📍 FOR TRAILERED BOATS (Mandatory):
If you are towing a fishing boat, ski boat, deck boat, or pontoon, you MUST stop at an official Watercraft Inspection & Decontamination (WID) station in Bishop or Bridgeport before you head to the ramp.
🎫 NEW LAW: A valid Eastern Sierra Mussel Sticker must be displayed on your trailered vessel before launch.
📍 FOR ALL OTHER CRAFT (Kayaks, SUPs, Float Tubes):
While hand-launched craft do not require a formal WID station stop, you are still legally required to ensure your gear is Clean, Drained, and Dry 🧼💨 before entering any waterway.
📍 WATERS COVERED:
These laws are strictly enforced for ALL Inyo and Mono County waterways, including:
🔹 Diaz Lake & Klondike
🔹 South Lake & Lake Sabrina
🔹 Rock Creek Lake & Convict Lake
🔹 Mammoth Lakes Basin (Twin, Mary, George, Mamie)
🔹 Crowley Lake, Grant Lake & June Lake Loop
🔹 Bridgeport Reservoir ...and everywhere in between!
⚠️ THE STAKES: Launching a trailered boat without an inspection can result in heavy fines or boat impoundment. Protect the places we love—inspect before you connect! 🌲✨