Getting There: At the top of Thompson Pass take road #266 on the Idaho side of the pass up past the vault toilet for about a mile to the small parking area at the trailhead. The road is passable for any vehicle, but there is no room for a trailer. The trail takes off at the end of the road/parking area. The trailhead is not very big and being located just off Thompson Pass tends to fill up fast on the weekends. This is an easy 1.5-mile stroll to the lake with a small creek crossing at the halfway point. The trail is in really good shape with modest grades to the lake. There are no significant side trails that connect into the main trail. This is a good casual hike or camping trip for a family with younger children or for the first overnight backpacking.
At the Lake: There are several campsites on both sides of the outlet and a couple others close to the inlet stream on the far end of the lake. You can probably squeeze in more than 10 parties into the various campsites if needed. There is a nice little beach on the far side of the lake with a fire pit along the lake. Compared to the trail to the lake the lakeshore trails on both sides are quite rough, steep and has a few deadfalls across the trail.
I first went into this lake on my birthday weekend (a Saturday) in June of 2021 with Kathy, Michelle, Colter, Willow and Skye. This is a popular lake, so we got going early in the morning and arrived at the trailhead around 8, coming from CDA. 
There were 3 other cars there, but they were camping at the lake; so, our party was the first of many day hiking groups of the day. It really wasn’t the best day as it was a bit cool and windy at the lake. We hung around by the big rock, had lunch and I fished some. I didn’t get a single bite and only saw a couple small (4 in) fish follow my lure in.
From the outlet, there were 2 parties camping to the right and one to the left. Colter took a hike about halfway around the lake. We stayed about an hour, as we had planned on a barbeque back home, so we didn’t stay too long. As we were preparing to leave people started showing up at the lake. On our way out we had a rough count of 50+ people on the trail. Around 3 of the parties were planning on camping, so it was going to be a crowded Saturday night there at the lake. The trailhead was completely full, with vehicles parking several hundred yards back down the road, with more groups arriving. I wouldn’t be surprised that 100 people visited Revett Lake that day. This is definitely a lake to visit during the week to avoid the crowds.
In 2023, my son (Colter) and I completed the Thompson Pass Loop and came into the lake at the outlet. The campsites at the inlet were full but there were still a couple sites near the outlet available.
