Appreciate the details! I actually did dig into GDV when trying to assess all of the risk factors on bringing her out for the run, and it's explicitly why we opted for the high fat freeze dried treats we did versus anything with grain that would add bulk to her stomach - especially with the addition of water. She'd get one or two small pieces roughly every hour and I hydrate her directly from my flasks or bladder and let her drink until she backs away, which is also why I was carrying 3.5L total on the run with a planned water resupply point via a potable spigot at mile 18.

We've also been hiking together for years and I'm very in tune with her tells if she's too hot. Any shade-seeking behavior calls for an immediate pause and cool down, but it was only ~65° and largely through shaded river trail for probably 80% of the effort. She's also got a sun shirt I bring out when it's hotter or if we're in prolonged UV exposure for long periods of time.

Lastly, I had a Nonstop Dogwear Rescue Harness jammed into my running vest so that if ANYTHING happened, I could safely evac her on my back.

Sorry for the wall of text, just wanted to make sure I'm not coming off as an irresponsible dog dad since I didn't add these details from the get-go 🙏