Koser Spring
If you're passing
Is it plungeworthy?
A named spring in Jefferson County.
The details
- Area
- Jefferson County
- Coordinates
- 39.71027, -105.39333
About Koser Spring
Koser Spring is a mapped spring in Jefferson County, Colorado, at roughly 7,733 feet of elevation.
Plungeworthy rates Koser Spring 4.6/10 — if you're passing. The score weighs its scale, how confidently it's mapped, and its character.
Where it is
Planning a visit? We want your photo.
Koser Spring doesn't have a photo yet. If you make the trip, send one to hello@plungeworthy.com and we'll publish it here with credit to you.
Before you go
The pin marks the feature, not a trailhead or a legal route in. Some sit on private land or need a real hike, and conditions change with season and rain. Check local access, don't trespass, and never enter water — hot or cold — where it isn't safe.
Common questions
Where is Koser Spring?
Koser Spring is a cold & mineral spring in Colorado, at 39.71027, -105.39333.
Is Koser Spring worth visiting?
If you're passing — Plungeworthy rates it 4.6/10.
Gear for the trip
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