Kies (27 miles) is a mostly submerged crater with only a little of its rim still visible. The highest wall is only about 1/4 mile high and a small section is completely missing from the western rim. The floor is flooded and the same dark color as the Mare Nubium, the Sea of Clouds that surround Kies. Under morning illumination 2 days after first quarter, this little formation and the area around it show great detail. Wrinkle ridges, small craters and rills are easily spotted.
Pi Kies (6 miles) is a typical large lunar dome. While I have seen it under very grazing sunlight with my 2.4 inch refractor, the 4 inch reveals it pretty easily. The 6 inch refractor will show a tiny crater pit in the center of the dome.