Beta

GuidedFloats is in beta. The full site launches March 1, 2027. The mobile app follows.

Guides: claim before March 1, 2027 and your first full season of Premium is free. Claim your founding spot →

Log in List your guide serviceFor guides
Home › Waters › Michigan › Thornapple River
River · Southwest Michigan, from the Eaton County headwaters through Hastings and Middleville to the Grand River at Ada east of Grand Rapids · Michigan

Thornapple River Fishing Guides

A quiet southwest Michigan warmwater river with a genuinely good smallmouth population and easy float access between Hastings and Ada.

Sunrise over a winding river cutting through open farm country
Gauge location. Map data © OpenStreetMap contributors.

Guides on the Thornapple River

Claimed profiles take booking requests. Unclaimed profiles are built from public records so the river is never empty; the guide can claim or remove one any time.

No guides listed yet

Guide or outfit this water? Create your profile. Listing is free, the commission is 10% or 7% with a premium profile, and premium profiles list first on this water.

About the Thornapple River

The Thornapple is a working southwest Michigan river that most anglers drive past on their way to the Muskegon or the Pere Marquette. It runs about a hundred miles from Eaton County through Hastings and Middleville and joins the Grand at Ada just east of Grand Rapids. There are no salmon here and no trout to speak of, and that is precisely why it stays quiet.

What it does have is smallmouth bass, in good numbers and in respectable sizes. The river alternates between shallow gravel riffles and deeper impounded stretches behind a series of small dams, and the smallmouth hold in the moving water – along current seams, behind boulders, and under the overhanging bank cover that lines most of the corridor. Northern pike use the slower impoundments and the weed edges, walleye are present in the deeper runs particularly below the dams, and largemouth, rock bass, bluegill and crappie fill in the slack water. Channel catfish work the bottom through the warm months.

Floating is the way to fish it. Canoe and kayak liveries operate around Middleville and the Hastings to Ada stretch is broken into comfortable half-day runs by road crossings and small parks. The dams require portages and should be scouted; several have been modified or removed in recent years and the river below each one is where the best current-oriented fishing tends to be. Wading works well at summer flow on the gravel reaches.

Access is a mix of township parks, road crossings and a few formal launches, with a fair amount of private frontage between them. Guiding is essentially nonexistent, so this is a do-it-yourself river.

This water needs a real photo

The photo at the top of this page is not Thornapple River.

It is a regional stand-in, honestly captioned but generic — we will not put a name to a river we cannot prove. Send us a photograph you took here and it replaces the stand-in, with your credit on it.

Add a photo of this water See the badges

Pioneer badgeUnclaimed

Add a photo of this water

Landscape, not fish — the water itself. Reviewed by hand before it appears. The first one published here earns the Pioneer badge.

Never published. It is how the badge is held for you until member accounts open.

Posting to Thornapple River.

JPG, PNG or WebP, up to 12 MB. Landscape orientation looks best at the top of the page. We resize it and strip the location data out of the file.

The name printed under the photo and on your badge. Leave blank to stay anonymous.

Reader photo license v1.0 — the short version:

  • You grant Guided Floats, LLC a non-exclusive, royalty-free license to publish, resize and crop your photo on guidedfloats.com and in GuidedFloats’ own social posts and apps. You keep the copyright and can use the photo anywhere else.
  • You confirm that you took the photo yourself, that publishing it does not infringe anyone else’s rights, and that anyone recognisable in it (or a parent or guardian, if they are under 18) is happy for it to appear here.
  • Credit is printed beside the photo wherever it appears on the site, using the credit name you give us. Leave it blank and we use your name; write “Anonymous” for no name. Your email address is never published.
  • Withdrawing is one email to hello@guidedfloats.com naming the photo. It comes off the site within 7 days.
Read the full license

Version 1.0, dated 6 September 2026. Applies to every photograph submitted to GuidedFloats through the contact form, a species page, or the community board.

1. What you give us

By ticking the box on the form you grant Guided Floats, LLC (“GuidedFloats”, “we”) a non-exclusive, worldwide, royalty-free license to store, copy, resize, crop and display your photograph on guidedfloats.com, in GuidedFloats’ own social media accounts and mobile apps, and in material that promotes the site itself, in connection with the fish, water or community feature you sent it in for. The license lasts until you withdraw it (section 4).

You keep the copyright. The license is not exclusive, so you can use the photo anywhere else and license it to anyone else. We will not sell your photo, license it on to anyone else on its own, or use it in paid advertising for a third party.

2. What you confirm

You confirm that you took the photograph yourself (or otherwise own the rights to it), that you have the right to grant this license, and that publishing the photo does not infringe anyone else’s copyright, privacy or other rights.

If any person is recognisable in the photo, you confirm that they have agreed to its being published here, and that a parent or guardian has agreed on behalf of anyone under 18. Please do not send photographs of other people’s catches, screenshots, or pictures copied from other websites or social media.

3. Credit

We print the credit name you give us beside the photo wherever it appears on the site, and record it as the photo’s creator in the page’s structured data. If you leave the credit blank we use the name you gave us on the form. Write “Anonymous” if you prefer no name at all. Your email address, phone number and the exact spot the photo was taken are never published.

4. Withdrawing the license

You can withdraw the license at any time by emailing hello@guidedfloats.com, or by using the contact form, and telling us which photo you mean. We will remove the photo from guidedfloats.com within 7 days of receiving your message and stop using it in anything new. Copies that are already outside our control — search-engine caches, social posts that have already gone out, printed material already produced — may take longer to disappear or may not be recallable, and we are not responsible for those.

5. What we may do

We choose which photos to publish and may decline any submission without giving a reason. We may crop, resize, sharpen or colour-correct a photo for display, and we may remove a photo at any time. We will not alter a photo in a way that misrepresents the fish, the water or you.

6. Your details

We keep your name, email address, the credit name, the water and date you gave us, and the network address the submission came from, with the submission record, as our evidence of this license. We hold that record for as long as the photo is published and for the retention period described in our privacy policy. Location data that your camera or phone embedded in the file is removed before the photo is published.

7. Versions

The version of this license you accepted is stored with your submission and printed with the photo. A later version does not apply to a photo you have already sent unless you agree to it.

Fished this water? Add a photo

Reviewed by hand before it appears. Pick the water, not the spot — we never publish exact locations.

Never published. We use it only if we need to ask about the photo.

Posting to Thornapple River.

JPG, PNG or WebP, up to 12 MB. We resize it and strip the location data out of the file.

The name shown under the photo. Leave blank to stay anonymous.

Reader photo license v1.0 — the short version:

  • You grant Guided Floats, LLC a non-exclusive, royalty-free license to publish, resize and crop your photo on guidedfloats.com and in GuidedFloats’ own social posts and apps. You keep the copyright and can use the photo anywhere else.
  • You confirm that you took the photo yourself, that publishing it does not infringe anyone else’s rights, and that anyone recognisable in it (or a parent or guardian, if they are under 18) is happy for it to appear here.
  • Credit is printed beside the photo wherever it appears on the site, using the credit name you give us. Leave it blank and we use your name; write “Anonymous” for no name. Your email address is never published.
  • Withdrawing is one email to hello@guidedfloats.com naming the photo. It comes off the site within 7 days.
Read the full license

Version 1.0, dated 6 September 2026. Applies to every photograph submitted to GuidedFloats through the contact form, a species page, or the community board.

1. What you give us

By ticking the box on the form you grant Guided Floats, LLC (“GuidedFloats”, “we”) a non-exclusive, worldwide, royalty-free license to store, copy, resize, crop and display your photograph on guidedfloats.com, in GuidedFloats’ own social media accounts and mobile apps, and in material that promotes the site itself, in connection with the fish, water or community feature you sent it in for. The license lasts until you withdraw it (section 4).

You keep the copyright. The license is not exclusive, so you can use the photo anywhere else and license it to anyone else. We will not sell your photo, license it on to anyone else on its own, or use it in paid advertising for a third party.

2. What you confirm

You confirm that you took the photograph yourself (or otherwise own the rights to it), that you have the right to grant this license, and that publishing the photo does not infringe anyone else’s copyright, privacy or other rights.

If any person is recognisable in the photo, you confirm that they have agreed to its being published here, and that a parent or guardian has agreed on behalf of anyone under 18. Please do not send photographs of other people’s catches, screenshots, or pictures copied from other websites or social media.

3. Credit

We print the credit name you give us beside the photo wherever it appears on the site, and record it as the photo’s creator in the page’s structured data. If you leave the credit blank we use the name you gave us on the form. Write “Anonymous” if you prefer no name at all. Your email address, phone number and the exact spot the photo was taken are never published.

4. Withdrawing the license

You can withdraw the license at any time by emailing hello@guidedfloats.com, or by using the contact form, and telling us which photo you mean. We will remove the photo from guidedfloats.com within 7 days of receiving your message and stop using it in anything new. Copies that are already outside our control — search-engine caches, social posts that have already gone out, printed material already produced — may take longer to disappear or may not be recallable, and we are not responsible for those.

5. What we may do

We choose which photos to publish and may decline any submission without giving a reason. We may crop, resize, sharpen or colour-correct a photo for display, and we may remove a photo at any time. We will not alter a photo in a way that misrepresents the fish, the water or you.

6. Your details

We keep your name, email address, the credit name, the water and date you gave us, and the network address the submission came from, with the submission record, as our evidence of this license. We hold that record for as long as the photo is published and for the retention period described in our privacy policy. Location data that your camera or phone embedded in the file is removed before the photo is published.

7. Versions

The version of this license you accepted is stored with your submission and printed with the photo. A later version does not apply to a photo you have already sent unless you agree to it.

Access

Hastings - the gauge reach and the main upper access with town parks.
Middleville - canoe livery access and a popular put-in.
Ada - the Grand River confluence and the bottom takeout.
Irving - middle river road crossing access.
Cascade Township parks - lower river access near Grand Rapids.
Charlton Park area - upper river access near Hastings.
Whitneyville - middle river crossing and bank access.

Seasons

Spring: high water, walleye below the dams and pike in the slow stretches.
Summer: low clear flows, prime smallmouth wading and floating conditions.
Fall: cooling water, aggressive smallmouth and almost no other boats.
Winter: cold and largely unfished, with pike the most realistic target.

From the water

No logged trips yet. Be the first to put this water on your map.

Log this water

Fished it or cleaned it? Log in or create a free account to log a trip with photos and earn the waterway badge.

Questions

What is the current flow on the Thornapple River?

As of Sep 17, 6:15 am, the USGS gauge THORNAPPLE RIVER NEAR HASTINGS, MI reads 221 cfs. Conditions update every 15 minutes.

What species can you catch on the Thornapple River?

Anglers target Black Crappie, Bluegill, Channel Catfish, Largemouth Bass, Northern Pike, Rock Bass, Smallmouth Bass, Walleye on the Thornapple River in Michigan.

Where can you access the Thornapple River?

Hastings - the gauge reach and the main upper access with town parks. Middleville - canoe livery access and a popular put-in. Ada - the Grand River confluence and the bottom takeout. Irving - middle river road crossing access. Cascade Township parks - lower river access near Grand Rapids. Charlton Park area - upper river access near Hastings. Whitneyville - middle river crossing and bank access.

When is the best time to fish the Thornapple River?

Spring: high water, walleye below the dams and pike in the slow stretches. Summer: low clear flows, prime smallmouth wading and floating conditions. Fall: cooling water, aggressive smallmouth and almost no other boats. Winter: cold and largely unfished, with pike the most realistic target.

Where are the fishing regulations for the Thornapple River?

Regulations change by season and section. Read the current rules on the Michigan agency site: https://www.michigan.gov/dnr/things-to-do/fishing/fishing-regulations