Mountain Lake
Franklin County, Pennsylvania44 acresView mapDirections
No nutrient or algae sampling on record from PA DEP for this lake.
- Public access
Mountain Lake in Franklin County, Pennsylvania has water-quality measurements published by PA DEP, shown here as reported. Surface area: 44 acres.
Mountain Lake is a 44-acre lake in Franklin County, Pennsylvania. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, PA DEP. Methodology: how these readings are compared.
What Mountain Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Mountain Lake is safe to swim in today is a call for the Pennsylvania Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Mountain Lake
These are the measurements PA DEP publishes for Mountain Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Mountain Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
44 acres
Shoreline
1.6 mi
Public access
Yes
Listed by PA DEP
No bathymetric survey has been published for Mountain Lake, so its depth is not documented here.
Recreation & Access
- Fannettsburg DamPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Mountain Lake
Compare lakeside cabins, hotels, and vacation rentals near Mountain Lake in Franklin County, Pennsylvania — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Mountain Lake
Prices for Oct 16–18, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Pennsylvania’s top lakes →
Follow Mountain Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Mountain Lake
Nearby Lakes in Franklin County
Frequently asked questions about Mountain Lake
Where is Mountain Lake?
- Mountain Lake is a lake in Franklin County, Pennsylvania. Its water-quality measurements are published by PA DEP and shown on this page as reported.
What is the water quality of Mountain Lake?
- Mountain Lake in Franklin County, Pennsylvania has water-quality measurements published by PA DEP, shown here as reported. Surface area: 44 acres.
Is Mountain Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Mountain Lake?
- Mountain Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Fannettsburg Dam. Public access is listed as yes.
Can I fish at Mountain Lake?
- Mountain Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Pennsylvania's fish and wildlife agency, so check its current regulations before you go.
Explore Mountain Lake across LakeQuality
More lakes in Pennsylvania
Other Lakes in Pennsylvania
Where this data comes from
Measurements for Mountain Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory