Hello Martin - yes, my brother and I have used that trail on the east side of Basin Lk. In 2021 to hike over to Clover Lk and in 2022 we used that route again to walk in to Guthrie Lk and Turcotte Lk. The first time I used that route was in 1974 at which time the trail was in good shape. But that was 40 years ago and, as you say, there is no longer any real trail after you hit the marsh above Basin Lk. After some searching though we were able to find signs of the old trail and combined with some bushwhacking were able to make our way. You eventually hit a logging road running east-west that does go in the direction of Clover Lk. but it turns south and ends quite some distance from Clover. Another logging road goes north for some distance in the direction of Guthrie.