Where is Vallecito Reservoir?

Vallecito Reservoir is a lake in La Plata County, Colorado. Its water-quality measurements are published by Colorado WQCD and shown on this page as reported.

Are there campgrounds on Vallecito Reservoir?

Vallecito Reservoir has 4 public campgrounds from USGS The National Map within 5 km, including Pine Point, Middle Mountain, North Canyon, Graham Creek. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.

Vallecito Reservoir

La Plata County, Colorado2,603 acresView map Directions

No nutrient or algae sampling on record from Colorado WQCD for this lake.

Area

2,603 acres

Surface area

Shoreline

11.4 mi

Measured length

Impaired · Mercury

See the measurements Directions Where to stay

Vallecito Reservoir in La Plata County, Colorado has water-quality measurements published by Colorado WQCD, shown here as reported. Surface area: 2603 acres.

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Vallecito Reservoir is a 2,603-acre lake in La Plata County, Colorado.

Source: EPA Water Quality Portal sampling records, CDPHE. Methodology: how these readings are compared.

What Vallecito Reservoir is good for

From access and monitoring records, not editorial picks.

Camping4 public campgrounds nearby
Big water2,603 acres

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Vallecito Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, oxygen depletion (low DO). Check local advisories before you swim.

Whether Vallecito Reservoir is safe to swim in today is a call for the Water Quality Control Division of the Colorado Department of Public Health and Environment and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Vallecito Reservoir

These are the measurements Colorado WQCD publishes for Vallecito Reservoir, 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 Vallecito Reservoir

Answers come straight from the public measurements and survey records on this page.

Lake Details

Surface area

2,603 acres

Shoreline

11.4 mi

No bathymetric survey has been published for Vallecito Reservoir, so its depth is not documented here.

Recreation & Access

Campgrounds

Public campgrounds near Vallecito Reservoir

Pine Point0.8 km
Middle Mountain0.8 km
North Canyon1.2 km
Graham Creek1.5 km

Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes

Stays via Stay22

Stays near Vallecito Reservoir

Compare lakeside cabins, hotels, and vacation rentals near Vallecito Reservoir in La Plata County, Colorado — 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 Vallecito Reservoir

Prices for Oct 16–18, 4 adults. Change dates on the map below.

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Fishing Vallecito Reservoir

→ Vallecito Reservoir fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Vallecito Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

MercuryOxygen depletion (low DO)

Designated uses not supporting: Aquatic life.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit COSJPN03_A · Official waterbody report

Nearby Lakes in La Plata County

Lemon Reservoir6.6 miView →City Reservoir10 miView →Upper Grizzly Lake15.1 miView →Upper Sunlight Lake15.6 miView →Lower Sunlight Lake16 miView →Shalona Lake15.4 miView →

Frequently asked questions about Vallecito Reservoir

Where is Vallecito Reservoir?: Vallecito Reservoir is a lake in La Plata County, Colorado. Its water-quality measurements are published by Colorado WQCD and shown on this page as reported.
What is the water quality of Vallecito Reservoir?: Vallecito Reservoir in La Plata County, Colorado has water-quality measurements published by Colorado WQCD, shown here as reported. Surface area: 2603 acres.
Is Vallecito Reservoir safe to swim in?: Nutrient and algae readings are not a swimming clearance. Vallecito Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, oxygen depletion (low DO). Check local advisories before you swim.
Are there campgrounds on Vallecito Reservoir?: Vallecito Reservoir has 4 public campgrounds from USGS The National Map within 5 km, including Pine Point, Middle Mountain, North Canyon, Graham Creek. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.