Grand Lake is a lake or reservoir in Colorado, listed as Special-regulation trout water by Colorado Parks and Wildlife.
1 USGS gauge on the water reports flow. 3 guides and 7 shops nearby are listed here; the nearest destination hub is Estes Park & Rocky Mountain National Park.
Grand Lake is a lake or reservoir in Colorado. Our destination hub Estes Park & Rocky Mountain National Park is 19 mi away in a straight line.
Pick one of its USGS gauges and hear from us when the flow moves into or out of its usual range for the date, or crosses a flow you set. We check the public USGS reading every 2 hours and email only when it crosses, at most once every 6 hours. Flow alone is not a fishing forecast or a safety call.
Signed in: one step. Otherwise we email a confirmation link first. Every alert has one-click links to stop it.
Start from the agency's public access map. Nothing on this page grants or implies access: check the agency map, posted signs and landowner permission before you fish.
Nothing on this page grants or implies access.
Gauges, shops and guides within 40 miles
Map of Grand Lake: gauges, shops and guides
Map of Grand Lake with 1 USGS gauge.
Restrooms within 2 miles of Grand Lake in a straight line, nearest first, with what anglers found when they went. The map says a restroom is there, not whether it is clean or open today.
No restroom mapped within 2 mi yet — add one you know.
Campgrounds, fishing access sites and boat ramps often have one that isn't on the map yet.
Restroom locations and map details: © OpenStreetMap contributors, Open Database License, read Oct 24, 2026. Ratings, answers and photos are members' own; who shared them is never shown, and every photo is reviewed before it appears. Visits older than 18 months no longer count. Distances are straight-line miles, not driving. Nothing here grants access to private land. Community guidelines.
Gold Medal WaterThe Colorado River and Onahu Creek in the Kawuneeche Valley, Rocky Mountain National Park. Photo: KimonBerlin, CC BY-SA 2.0, via Wikimedia Commons
Colorado · about 6 mi
Catch and releaseThe Big Thompson River at Viestenz-Smith Park in Big Thompson Canyon. Photo: Wusel007, CC BY-SA 3.0, via Wikimedia Commons
Colorado · about 15 mi
Freestone riverThe Fall River in Horseshoe Park, Rocky Mountain National Park, Colorado. Photo: Mark DeVries, CC BY-SA 2.0, via Flickr
Colorado · about 15 mi
Featured sport-fishing waterRepresentative photo · not Lake GranbyNavajo Lake from Navajo Lake State Park, New Mexico. Photo: Larry D. Moore, CC BY 4.0, via Wikimedia Commons Not Lake Granby.
Colorado · about 6 mi
Special-regulation trout waterRepresentative photo · not Michigan RiverThe Cache la Poudre River in Poudre Canyon. Photo: Wusel007, CC BY-SA 3.0, via Wikimedia Commons Not Michigan River.
Colorado · about 17 mi
Special-regulation trout waterRepresentative photo · not Fraser RiverNorth St. Vrain Creek in the Wild Basin area of Rocky Mountain National Park. Photo: Hogs555, CC BY-SA 3.0, via Wikimedia Commons Not Fraser River.
Colorado · about 18 mi
Seasons, limits, special regulations and closures for each reach are on the agency pages below. Read them before you go.
Each comes from the agency's own published list; where the list names a reach it is quoted. A designation applies to the listed reach, not necessarily the whole water. Listed in the finder under trout.
On the Special Regulations: Fishing Waters (trout rules: artificial flies and lures, trout limits) list (Colorado Parks and Wildlife, read 2026-11-05). All waters with this designation
Listings marked Unclaimed are built from open map records and the business's own website: confirm licensing, rates, dates and hours directly.
Estes Park, CO · 18 mi
Beginners & lessons · Multi-day trips · Colorado & Big Thompson
Nearby
Estes Park, CO · 19 mi
Lake & stillwater · Beginners & lessons
Nearby
What 3 nearby guide websites mention: what guides advertise, not a survey or a promise of what you will catch.
Named on 3 nearby guide websites
1 hatch charted for the region, not measured on this water. From Utah Division of Wildlife Resources.
Green drake (June to July)
Estes Park is the east gateway to Rocky Mountain National Park, on the Big Thompson and Fall rivers, with the Cache la Poudre and St. Vrain drainages to the north and south and the Colorado River headwaters over Trail Ridge Road.
Destination hub · 19 mi away in a straight line
A stillwater fly-fishing checklist for lakes and ponds: a 9–10 ft 5–6 weight rod, floating and intermediate lines, chironomids and leeches, and float-tube options, with estimated prices and where to buy.
9′–10′ rod, 5–6 weight, floating + intermediate lines · Rainbow, brook and brown trout in lakes
Open the checklistChironomids, leeches and where fish hold in a lake.
Public YouTube videos from established channels, chosen by us to support this page. Not sponsored; the creators are not affiliated with Legendary Fly Gear.
Not sponsored All videos on stillwater
Trip stories anglers chose to share publicly and tagged with Grand Lake.
No stories from here yet.
Not a statement of access, fish presence or conditions.
A water page organises discovery. It does not assert public access, legal access, current fish presence, guide availability or fishing conditions.
Flows, gauge statistics and flood stages come from USGS and the National Weather Service when the page is shown. Regulations, stocking, species and season statements link to the agency that publishes them; this page copies only the species names and the quoted sentences. Guide and shop listings come from the Legendary directories. Position: the USGS gauge GRAND LAKE OUTLET BLW CHIPMUNK LN AT GRAND LK, CO. Water type is our own classification.
Limited data: Not enough data: no water temperature or flow statistics here
No water temperature, flow statistics here.
At GRAND LAKE OUTLET BLW CHIPMUNK LN AT GRAND LK, CO (USGS 09014050) Provisional USGS data
USGS 09014050
What the agencies suggest
Anglers should use a handheld thermometer to test water conditionsColorado Parks and Wildlife
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 4, 11:40 PM MST · provisional USGS data
Steady · 24 h
Discharge, last 7 days: 68 readings from Oct 29, 4:10 PM MDT to Nov 4, 11:40 PM MST; ranging 0.54 to 78.6 ft³/s; latest 6.18 ft³/s; 3 gaps in the record.
USGS provisional data may be revised. Source: USGS Water Data API continuous values.
| Time | Discharge (ft³/s) | Gauge height (ft) |
|---|---|---|
| Nov 4, 11:40 PM MST | 6.18 | 8.58 |
| Nov 4, 10:00 PM MST | 6.19 | 8.58 |
| Nov 4, 8:10 PM MST | 17.4 | – |
| Nov 4, 5:50 PM MST | 6.18 | 8.57 |
| Nov 4, 4:40 PM MST | 0.55 | 8.58 |
| Nov 4, 2:50 PM MST | 11.8 | 8.57 |
| Nov 4, 1:50 PM MST | 51.2 | – |
| Nov 4, 8:20 AM MST | 0.55 | 8.59 |
| Nov 4, 7:20 AM MST | 0.55 | 8.58 |
| Nov 4, 6:00 AM MST | 28.7 | 8.59 |
| Nov 4, 5:00 AM MST | 11.8 | 8.59 |
| Nov 4, 3:10 AM MST | 11.8 | – |
| Nov 4, 1:00 AM MST | 0.55 | 8.59 |
| Nov 3, 11:00 PM MST | 6.19 | 8.59 |
| Nov 3, 10:00 PM MST | 6.19 | 8.59 |
| Nov 3, 8:20 PM MST | 0.55 | 8.59 |
| Nov 3, 6:00 PM MST | 6.2 | 8.6 |
| Nov 3, 4:00 PM MST | 17.5 | 8.6 |
| Nov 3, 1:10 PM MST | 6.21 | – |
| Nov 3, 11:20 AM MST | 17.5 | 8.61 |
| Nov 3, 9:30 AM MST | 6.21 | 8.61 |
| Nov 3, 7:30 AM MST | 0.55 | 8.61 |
| Nov 3, 6:20 AM MST | 6.21 | 8.61 |
| Nov 3, 3:30 AM MST | 0.55 | 8.62 |
| Nov 3, 2:30 AM MST | 45.9 | 8.62 |
| Nov 3, 12:50 AM MST | 0.55 | 8.61 |
| Nov 2, 11:30 PM MST | 11.9 | 8.62 |
| Nov 2, 9:10 PM MST | 0.55 | – |
| Nov 2, 7:10 PM MST | 0.55 | – |
| Nov 2, 6:10 PM MST | 0.55 | – |
| Nov 2, 4:00 PM MST | 6.22 | 8.63 |
| Nov 2, 1:30 PM MST | 23.2 | 8.63 |
| Nov 2, 12:30 PM MST | 0.55 | 8.63 |
| Nov 2, 11:20 AM MST | 17.6 | 8.63 |
| Nov 2, 3:20 AM MST | 23 | 8.55 |
| Nov 2, 1:00 AM MST | 6.11 | 8.5 |
| Nov 1, 10:00 PM MST | 17.2 | 8.5 |
| Nov 1, 7:50 PM MST | 0.54 | 8.5 |
| Nov 1, 6:00 PM MST | 6.1 | 8.5 |
| Nov 1, 5:00 PM MST | 11.7 | 8.5 |
| Nov 1, 4:00 PM MST | 17.3 | 8.52 |
| Nov 1, 1:20 PM MST | 33.9 | 8.5 |
| Nov 1, 11:00 AM MST | 0.54 | 8.51 |
| Nov 1, 8:50 AM MST | 11.7 | 8.5 |
| Nov 1, 5:40 AM MST | 6.11 | 8.51 |
| Nov 1, 4:40 AM MST | 22.8 | 8.51 |
| Nov 1, 2:40 AM MST | 6.12 | 8.52 |
| Nov 1, 1:30 AM MDT | 6.12 | 8.52 |
| Oct 31, 11:30 PM MDT | 6.12 | 8.52 |
| Oct 31, 8:50 PM MDT | 17.3 | 8.52 |
| Oct 31, 6:40 PM MDT | 28.5 | 8.53 |
| Oct 31, 5:40 PM MDT | 78.6 | 8.52 |
| Oct 31, 4:00 PM MDT | 39.7 | 8.53 |
| Oct 31, 2:10 PM MDT | 28.5 | – |
| Oct 31, 11:40 AM MDT | 17.3 | 8.54 |
| Oct 31, 10:30 AM MDT | 0.55 | 8.55 |
| Oct 31, 6:20 AM MDT | 11.7 | 8.54 |
| Oct 31, 4:20 AM MDT | 28.5 | 8.55 |
| Oct 31, 2:20 AM MDT | 6.14 | 8.55 |
| Oct 30, 11:50 PM MDT | 28.5 | 8.55 |
| Oct 30, 9:50 PM MDT | 17.4 | 8.55 |
| Oct 30, 5:30 PM MDT | 17.4 | 8.56 |
| Oct 30, 3:20 PM MDT | 39.8 | 8.55 |
| Oct 30, 2:20 PM MDT | 11.8 | 8.56 |
| Oct 30, 7:40 AM MDT | 28.7 | 8.57 |
| Oct 29, 7:30 PM MDT | 0.54 | 8.5 |
| Oct 29, 5:00 PM MDT | 6.1 | 8.5 |
| Oct 29, 4:10 PM MDT | 17.2 | – |
USGS publishes no daily statistics for this gauge, so the reading is not compared with the record.
Steady over 24 hours (−0.2% discharge). Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
The National Weather Service has no flood-stage gauge here, so no official flood category is shown.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer: the trout lines Colorado Parks and Wildlife uses are 71°F.
This gauge is on our page for Grand Lake, but no agency page we read lists its species.
Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
Checked Nov 5, 1:47 PM MST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.
Gold Medal WaterThe Colorado River and Onahu Creek in the Kawuneeche Valley, Rocky Mountain National Park. Photo: KimonBerlin, CC BY-SA 2.0, via Wikimedia Commons
Catch and releaseThe Big Thompson River at Viestenz-Smith Park in Big Thompson Canyon. Photo: Wusel007, CC BY-SA 3.0, via Wikimedia Commons
Freestone riverThe Fall River in Horseshoe Park, Rocky Mountain National Park, Colorado. Photo: Mark DeVries, CC BY-SA 2.0, via Flickr
Colorado · about 15 mi
Featured sport-fishing waterRepresentative photo · not Lake GranbyNavajo Lake from Navajo Lake State Park, New Mexico. Photo: Larry D. Moore, CC BY 4.0, via Wikimedia Commons Not Lake Granby.
Colorado · about 6 mi
Special-regulation trout waterRepresentative photo · not Michigan RiverThe Cache la Poudre River in Poudre Canyon. Photo: Wusel007, CC BY-SA 3.0, via Wikimedia Commons Not Michigan River.
Special-regulation trout waterRepresentative photo · not Fraser RiverNorth St. Vrain Creek in the Wild Basin area of Rocky Mountain National Park. Photo: Hogs555, CC BY-SA 3.0, via Wikimedia Commons Not Fraser River.
Grand Lake, Colorado
Fishing lodge · 0.6 mi
Granby, Colorado
Guest ranch · 12 mi
Granby, Colorado
Fish camp · 14 mi
