The interior floor of this crater has been resurfaced some time following the original formation, leaving a nearly level, featureless plain surrounded by the worn outer rim. This floor is marked only by a number of tiny craterlets, and the small crater 'Euctemon K' near the southwest inner wall. A small crater has cut through the western rim, and has joined with the main crater by a gap in its eastern rim. The two craters now share a common floor. Just to the north is another small crater, 'Euctemon H', that now forms a wide cleft through the rim. Along the ridge that separates Euctemon from Baillaud is perched the small crater 'Euctemon N'.
| Euctemon | Latitude | Longitude | Diameter |
|---|---|---|---|
| C | 76.2° N | 38.9° E | 20 km |
| D | 77.1° N | 39.2° E | 20 km |
| H | 76.3° N | 26.6° E | 16 km |
| K | 75.9° N | 28.4° E | 7 km |
| N | 75.5° N | 33.1° E | 8 km |