Mosquito Flat Reservoir

Flows into the Challis Creek

  • Recommended Fishing Water

Mosquito Flat Reservoir in Custer County is 97.1 acres.

Facilities

Motor Restriction
No
Boat Ramp
Yes
Dock
No
Toilet
Yes
Campground
Yes
ADA Access
Yes

Recommended Game Fish

Species Observed in Surveys

Fish Stocking Records

Date Species Quantity General Size
6/11/2019 Rainbow Trout 1,499 Greater than 6 inches
5/31/2019 Rainbow Trout 1,549 Greater than 6 inches
8/24/2018 Rainbow Trout 1,996 Greater than 6 inches
7/13/2018 Rainbow Trout 901 Greater than 6 inches
6/13/2018 Rainbow Trout 1,800 Greater than 6 inches
6/5/2018 Kokanee 6,020 Less than 6 inches
7/10/2017 Rainbow Trout 1,221 Greater than 6 inches
6/21/2017 Rainbow Trout 1,238 Greater than 6 inches
5/25/2017 Rainbow Trout 900 Greater than 6 inches
8/22/2016 Rainbow Trout 604 Greater than 6 inches
7/21/2016 Rainbow Trout 1,812 Greater than 6 inches
6/24/2016 Rainbow Trout 901 Greater than 6 inches
6/9/2016 Kokanee 7,054 Less than 6 inches
8/13/2015 Rainbow Trout 998 Greater than 6 inches
7/16/2015 Rainbow Trout 1,501 Greater than 6 inches
6/25/2015 Rainbow Trout 1,502 Greater than 6 inches
5/29/2015 Rainbow Trout 1,652 Greater than 6 inches
8/21/2014 Rainbow Trout 999 Greater than 6 inches
7/24/2014 Rainbow Trout 1,562 Greater than 6 inches
6/27/2014 Rainbow Trout 1,661 Greater than 6 inches
5/16/2014 Rainbow Trout 1,500 Greater than 6 inches
10/19/2013 Rainbow Trout 1,000 Greater than 6 inches
6/26/2013 Rainbow Trout 1,500 Greater than 6 inches
5/23/2013 Rainbow Trout 1,513 Greater than 6 inches
7/28/2012 Rainbow Trout 1,500 Greater than 6 inches
6/21/2012 Rainbow Trout 1,524 Greater than 6 inches
5/24/2012 Rainbow Trout 1,507 Greater than 6 inches
10/13/2011 Rainbow Trout 1,001 Greater than 6 inches
10/13/2011 Westslope Cutthroat Trout 19,654 Less than 6 inches
7/14/2011 Rainbow Trout 1,500 Greater than 6 inches
6/17/2011 Rainbow Trout 1,627 Greater than 6 inches
5/26/2011 Rainbow Trout 1,501 Greater than 6 inches
10/8/2010 Rainbow Trout 2,099 Greater than 6 inches
7/1/2010 Rainbow Trout 1,506 Greater than 6 inches
6/10/2010 Rainbow Trout 1,519 Greater than 6 inches
5/25/2010 Rainbow Trout 1,506 Greater than 6 inches
9/17/2009 Rainbow Trout 1,040 Greater than 6 inches
7/14/2009 Rainbow Trout 1,540 Greater than 6 inches
6/24/2009 Rainbow Trout 3,036 Greater than 6 inches
6/23/2008 Rainbow Trout 3,640 Greater than 6 inches
5/20/2008 Rainbow Trout 1,501 Greater than 6 inches
7/6/2007 Rainbow Trout 1,500 Greater than 6 inches
6/21/2007 Rainbow Trout 1,496 Greater than 6 inches
6/1/2007 Rainbow Trout 1,615 Greater than 6 inches
10/13/2006 Rainbow Trout 900 Greater than 6 inches
7/14/2006 Rainbow Trout 1,530 Greater than 6 inches
6/20/2006 Rainbow Trout 1,520 Greater than 6 inches
5/24/2006 Rainbow Trout 1,523 Greater than 6 inches
7/14/2005 Rainbow Trout 1,530 Greater than 6 inches
6/13/2005 Rainbow Trout 1,500 Greater than 6 inches
5/31/2005 Rainbow Trout 1,530 Greater than 6 inches
7/20/2004 Rainbow Trout 1,553 Greater than 6 inches
6/29/2004 Rainbow Trout 1,575 Greater than 6 inches
6/17/2004 Rainbow Trout 1,450 Greater than 6 inches
10/24/2003 Rainbow Trout 1,020 Greater than 6 inches
7/15/2003 Rainbow Trout 1,560 Greater than 6 inches
6/23/2003 Rainbow Trout 1,520 Greater than 6 inches
5/27/2003 Rainbow Trout 1,503 Greater than 6 inches
10/17/2002 Rainbow Trout 2,080 Greater than 6 inches
9/27/2002 Rainbow Trout 1,008 Greater than 6 inches
7/16/2002 Rainbow Trout 1,500 Greater than 6 inches
6/18/2002 Rainbow Trout 1,500 Greater than 6 inches
5/30/2002 Rainbow Trout 1,575 Greater than 6 inches
10/2/2001 Rainbow Trout 1,680 Greater than 6 inches
7/3/2001 Rainbow Trout 1,499 Greater than 6 inches
6/7/2001 Rainbow Trout 1,559 Greater than 6 inches
5/14/2001 Rainbow Trout 1,520 Greater than 6 inches
7/17/2000 Rainbow Trout 1,200 Greater than 6 inches
6/12/2000 Rainbow Trout 1,500 Greater than 6 inches
6/5/2000 Steelhead (Snake River - B Run) 400 Greater than 6 inches
5/23/2000 Rainbow Trout 1,500 Greater than 6 inches
8/23/1999 Rainbow Trout 5,500 Less than 6 inches
7/12/1999 Rainbow Trout 598 Greater than 6 inches
6/30/1999 Rainbow Trout 11,948 Less than 6 inches
6/16/1999 Rainbow Trout 935 Greater than 6 inches
6/8/1999 Steelhead 1,570 Greater than 6 inches
6/8/1999 Steelhead (Snake River - B Run) 4,500 Less than 6 inches
5/27/1999 Rainbow Trout 1,275 Greater than 6 inches
9/1/1998 Rainbow Trout 2,725 Less than 6 inches
8/27/1998 Rainbow Trout 1,396 Greater than 6 inches
8/12/1998 Rainbow Trout 5,069 Less than 6 inches
7/6/1998 Rainbow Trout 1,500 Greater than 6 inches
5/28/1998 Rainbow Trout 3,033 Greater than 6 inches
5/19/1998 Steelhead 3,000 Greater than 6 inches
10/3/1997 Rainbow Trout 2,700 Greater than 6 inches
7/14/1997 Rainbow Trout 1,740 Greater than 6 inches
6/27/1997 Rainbow Trout 10,175 Less than 6 inches
6/17/1997 Rainbow Trout 1,500 Greater than 6 inches
5/23/1997 Rainbow Trout 1,551 Greater than 6 inches
10/3/1996 Rainbow Trout 1,000 Greater than 6 inches
7/16/1996 Rainbow Trout 1,500 Greater than 6 inches
6/19/1996 Rainbow Trout 10,008 Less than 6 inches
6/18/1996 Rainbow Trout 1,500 Greater than 6 inches
6/10/1996 Rainbow Trout 1,550 Greater than 6 inches
9/21/1995 Rainbow Trout 2,000 Greater than 6 inches
9/19/1995 Rainbow Trout 950 Adults
7/18/1995 Rainbow Trout 1,560 Greater than 6 inches
6/21/1995 Rainbow Trout 900 Adults
6/14/1995 Rainbow Trout 10,000 Less than 6 inches
6/12/1995 Rainbow Trout 1,582 Greater than 6 inches
5/24/1995 Rainbow Trout 1,561 Greater than 6 inches
10/11/1994 Rainbow Trout 16,832 Greater than 6 inches
9/14/1994 Rainbow Trout 1,000 Greater than 6 inches
6/6/1994 Rainbow Trout 2,062 Greater than 6 inches
5/27/1994 Rainbow Trout 1,000 Greater than 6 inches
5/19/1994 Rainbow Trout 7,500 Less than 6 inches
8/5/1993 Bull Trout 416 Greater than 6 inches
5/24/1993 Rainbow Trout 2,000 Greater than 6 inches
5/26/1992 Rainbow Trout 2,200 Greater than 6 inches
6/13/1991 Rainbow Trout 2,100 Greater than 6 inches
6/9/1990 Rainbow Trout 1,000 Greater than 6 inches
5/16/1990 Rainbow Trout 1,000 Greater than 6 inches
6/8/1989 Rainbow Trout 1,980 Greater than 6 inches
5/23/1989 Rainbow Trout 2,100 Greater than 6 inches
5/25/1988 Rainbow Trout 1,980 Greater than 6 inches
5/15/1987 Rainbow Trout 2,160 Greater than 6 inches
5/19/1986 Rainbow Trout 2,023 Greater than 6 inches
5/17/1985 Rainbow Trout 2,010 Greater than 6 inches
6/14/1984 Rainbow Trout 870 Greater than 6 inches
5/23/1984 Rainbow Trout 1,260 Greater than 6 inches
6/8/1983 Rainbow Trout 2,004 Greater than 6 inches
7/20/1982 Rainbow Trout 2,268 Greater than 6 inches
6/10/1982 Rainbow Trout 2,795 Greater than 6 inches
6/2/1981 Rainbow Trout 2,040 Greater than 6 inches
5/20/1980 Rainbow Trout 3,200 Greater than 6 inches
9/8/1979 Rainbow Trout 4,001 Less than 6 inches
7/27/1979 Rainbow Trout 1,600 Greater than 6 inches
7/27/1979 Rainbow Trout 8,220 Less than 6 inches
6/6/1979 Rainbow Trout 1,440 Greater than 6 inches
6/14/1978 Rainbow Trout 3,190 Greater than 6 inches
6/28/1977 Rainbow Trout 2,600 Greater than 6 inches
6/27/1977 Rainbow Trout 480 Greater than 6 inches
5/27/1976 Rainbow Trout 5,080 Greater than 6 inches
6/12/1975 Rainbow Trout 5,070 Greater than 6 inches
5/22/1974 Rainbow Trout 2,160 Greater than 6 inches
6/6/1972 Rainbow Trout 4,840 Greater than 6 inches
5/26/1971 Rainbow Trout 5,000 Greater than 6 inches
6/1/1970 Rainbow Trout 5,040 Greater than 6 inches
5/22/1969 Rainbow Trout 5,015 Greater than 6 inches
5/22/1968 Rainbow Trout 5,130 Greater than 6 inches
Source: IDFG Fish Stocking Database.

Licenses and Tags

Learn more about IDFG Licenses, Tags & Permits
 

Fishing Rules

All Waters Open All Year

Except as modified in Special Rules
Fishing is not allowed within the posted upstream and downstream boundary of any fish weir or trap.

Daily Bag Limits

The following daily bag limits apply to all waters within each region except as modified in the Special Rules. The possession limit is 3-times the daily bag limit after the second day of the season.

Special Rules

No Special Rules for Mosquito Flat Reservoir.
Salmon Region Bag Limits
Bass (Largemouth and Smallmouth)
  • No bag, size or possession limits
Brook Trout
  • Brook Trout limit is 25
  • Harvest allowed during any open season unless otherwise noted under Special Rules - if gear or bait restrictions are listed, they must be followed when fishing for Brook Trout
Bull Trout
  • Bull trout limit is 0, catch-and-release
Kokanee
  • Kokanee limit is 25
Salmon (ocean-going)
  • Salmon seasons and limits are set annually by the Idaho Fish and Game Commission and rules are issued in a separate brochure
  • Fishing for or targeting salmon is prohibited unless a salmon season is specifically opened for that water
Steelhead (ocean-going)
  • Defined as Rainbow Trout longer than twenty (20) inches in length in the Salmon River drainage (excluding the Lemhi and Pahsimeroi rivers, lakes and reservoirs, and ponds)
  • Fishing for or targeting steelhead is prohibited unless a steelhead season is specifically opened for that water (see fishing regulations for details)
Sturgeon
  • Sturgeon limit is 0, catch-and-release
  • Sturgeon must not be removed from the water and must be released upon landing
  • Barbless hooks and sliding sinkers are required, see fishing regulations for details
Tiger Muskie
  • Tiger Muskie limit is 2, none under 40 inches
Trout includes Lake Trout, Golden Trout, Arctic Grayling, Cutthroat Trout, Rainbow Trout, Sunapee Trout and trout hybrids (e.g. Tiger Trout)
  • Trout limit is 6, all species combined
  • Chinook Salmon placed in ponds are considered in the trout bag limit
  • Does not include Bull Trout and Brook Trout which are listed separately
Whitefish
  • Whitefish limit is 25
  • Harvest allowed during any open season unless otherwise noted under Special Rules - if gear or bait restrictions are listed, they must be followed when fishing for whitefish
Protected Nongame Fish including Pacific Lamprey
  • May not be harvested or possessed
All Other Fish Species includes bullfrogs and crayfish
  • No bag, size or possession limit
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