Mosquito Flat Reservoir Boat Ramp

Mosquito Flat Reservoir Boat Ramp is a semi-private access point in Custer County, Idaho, providing access to Mosquito Flat Reservoir. It sits within the Upper Challis Creek watershed.

Sourced from Idaho Department of Fish and Game . Last checked against the source on July 7, 2026.

Boat ramps on Mosquito Flat Reservoir

Mosquito Flat Reservoir Boat Ramp is the only public boat ramp we have on record for Mosquito Flat Reservoir. Smaller creeks and coves sometimes have unofficial or private access points we haven't verified yet — if you know of one nearby, help us add it.

Other boat ramps in Custer County

Custer County tracks 12 public boat ramps in total, spread across several different rivers, creeks and lakes — not just Mosquito Flat Reservoir. Each one below shows which waterbody it's on, so you can tell at a glance whether it actually connects to the same water as Mosquito Flat Reservoir Boat Ramp or leads somewhere completely different.

• Mosquito Flat Reservoir Mosquito Flat Reservoir less than 0.1 mi away
• Challis Bridge Recreation Site Salmon River 12 mi away
• Bayhorse Recreation Site Salmon River 13 mi away
• Watts Bridge Salmon River 16 mi away
• South Butte Salmon River 19 mi away
• Torreys Hole Salmon River 20 mi away