2017 Mosquito Reports
- thirdbestfriend
- Topix Newbie
- Posts: 2
- Joined: Tue Jul 04, 2017 4:15 pm
- Experience: Level 4 Explorer
Castle Pass - Peter Grubb Hut (PCT) 7/3 - 7/4
Most of the trails are still covered in snow, although Castle Pass itself is dry. With lots of runoff and few standing pools just yet, mosquito activity was a 1-2. No bites, we saw a few at the trail head off I-80 and sprayed our clothes to keep them away. Then, nothing the rest of the weekend.
I estimate the snow will be off the trails by mid-July, so you may have just a short window to hike there and enjoy the scenery without getting attacked.
I estimate the snow will be off the trails by mid-July, so you may have just a short window to hike there and enjoy the scenery without getting attacked.
- maverick
- Forums Moderator
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- Joined: Thu Apr 06, 2006 5:54 pm
- Experience: Level 4 Explorer
Re: 2017 Mosquito Reports
Hi Thirdbestfriend,
Welcome to HST! Thanks for the update.
Welcome to HST! Thanks for the update.

Professional Sierra Landscape Photographer
I don't give out specific route information, my belief is that it takes away from the whole adventure spirit of a trip, if you need every inch planned out, you'll have to get that from someone else.
Have a safer backcountry experience by using the HST ReConn Form 2.0, named after Larry Conn, a HST member: http://reconn.org
I don't give out specific route information, my belief is that it takes away from the whole adventure spirit of a trip, if you need every inch planned out, you'll have to get that from someone else.
Have a safer backcountry experience by using the HST ReConn Form 2.0, named after Larry Conn, a HST member: http://reconn.org
- no2haven
- Topix Acquainted
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- Joined: Wed Jul 06, 2011 2:41 pm
- Experience: N/A
- Location: Berkeley, CA
Cottonwood Pass, Mitre Basin 7/1-7/4
Low level annoyance during the day: 1 in forests, 2 around lakes (Chicken Spring around noon) and creek crossings.
4 right at lake level (Soldier Lake) morning and evening, but quickly dropped to a 3 when you were 50 feet away from the water. Pretty bearable, actually. None seen in Mitre Basin during the day, and certainly not at Blue Sky (~40% ice covered still).
4 right at lake level (Soldier Lake) morning and evening, but quickly dropped to a 3 when you were 50 feet away from the water. Pretty bearable, actually. None seen in Mitre Basin during the day, and certainly not at Blue Sky (~40% ice covered still).
- cgundersen
- Topix Fanatic
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- Joined: Sun Jul 16, 2006 1:07 pm
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Lamarck col down to Grass Lake
As of June 30, we were getting sporadic mosquitoes just below Lamarck col (East side) and the bug count increased the lower we went. Grass Lake was a 5, but in the dry areas over toward North Lake campground, there were very few bugs (1). DEET kept 'em at bay.
cameron
cameron
- J ney
- Topix Acquainted
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- Joined: Fri Jun 29, 2012 5:55 pm
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- Location: Sunnyvale, CA
Vernon Lake, July 1
Around a 1 or 2 on the slabs above the lake. 3 or 4 in the forested areas around the inlet and back towards the cascade down from Branigan.
Also saw 5 or 6 piles of recent bear scat.
Crossing Fall Creek was straightforward (about knee deep with a mild current) albeit with major repercussions for a slip. We did not see anyone else on the slab side of Vernon Lake.
Also saw 5 or 6 piles of recent bear scat.
Crossing Fall Creek was straightforward (about knee deep with a mild current) albeit with major repercussions for a slip. We did not see anyone else on the slab side of Vernon Lake.
- AlmostThere
- Topix Addict
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- Experience: Level 4 Explorer
Re: Florence trail, Goddard Canyon
Mosquitos were present and landing on us in meadows and wooded areas, probably a 1 or so, not truly bad. Swattable - about one per minute. I put on Ultrathon and wasn't bothered. Another hiker reported that Blaney Meadows area was "really bad" at around 9:30 am and we had more mosquitoes during the day than morning or evening, for some reason, not sure why. I wonder if sometimes people mistake flies/gnats for mosquitoes because they were worse than the mosquitoes.
- Jimr
- Forums Moderator
- Posts: 2005
- Joined: Fri Jul 31, 2009 2:14 pm
- Experience: Level 4 Explorer
- Location: Redondo Beach
Sabrina Basin 7/4
July 4th
Scale of 1 to 5, 3 during the day kicking up to 5+ in the late afternoon until well after dark.
Scale of 1 to 5, 3 during the day kicking up to 5+ in the late afternoon until well after dark.
Last edited by maverick on Fri Jul 07, 2017 11:55 am, edited 1 time in total.
Reason: subject matter
Reason: subject matter
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-John Adams
- Lazeydazey
- Topix Novice
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Mineral King
Mineral King:
Atwell Campground
White Chief Trail to snowline and Franklin Trail to the creek.
All at level 2.
2 nights/2 days. 4 bites.
Atwell Campground
White Chief Trail to snowline and Franklin Trail to the creek.
All at level 2.
2 nights/2 days. 4 bites.
Last edited by maverick on Thu Jul 06, 2017 3:51 pm, edited 1 time in total.
Reason: subject matter
Reason: subject matter
- Nighthawk
- Topix Novice
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- Joined: Wed Jun 11, 2014 12:27 am
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Loch Leven Lakes 7/1-7/3
A 2 for the most part. We camped on an open ridge and the wind kept them away except around dusk. During the trip out, a 3 in some wet and wooded areas.
- jfr
- Topix Acquainted
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Paiute Pass Trail 7/1-7/3
As NightHawk said, the trail in the wooded area/aspens along the creek west of North Lake was about a 3 (at 9500 feet)
Paiute Lake was a 2 (at 11,000 feet)
Forsaken Lake below Mt Humphreys was a 1 (at 12,000 feet) - one mosquito landed on my hand after sunset
Paiute Lake was a 2 (at 11,000 feet)
Forsaken Lake below Mt Humphreys was a 1 (at 12,000 feet) - one mosquito landed on my hand after sunset
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