BRIEF DESCRIPTION
The "continental" area adjoining the Sinus Iridium stretches here into Oceanus Procellarum from the north-east (see section 10). A local curiosity is a group of peaks to the north of the crater Gruithuisen. the formation Gruithuisen Gamma is shaped like an upturned bath tub. In fact, it is a tall dome-like mountain massif with a circular base about 20 km in diameter, with a 900 m peak craterlet. Refer to your Antonin Rukl lunar atlas chart, page 45.

EARTH-BASED TELESCOPIC IMAGES:
Image - Gruithuisen & Sinus Iridium (Cazard)
Image - Domes & Sinus Iridium

LUNAR ORBITER IMAGES:
 Lunar Orbiter Database
Bucher, Dorsum
Delisle, 25 km  
Delisle, Rima
Gruithuisen, 16 km
Gruithuisen Domes
Gruithuisen Delta, Mons
Imbrium, Mare
Louville, 36 km
Louville D.
Mairan, 40 km
Mairan A.
Mairan T.
Mairan, Rima
Procellarum, Oceanus
Roris, Sinus
Wollaston, 10 km 

APOLLO IMAGES:
None filed as yet.

RESEARCH UPDATES:
AS17-3125(P) - Very young rimless crater in Section 9 (SP-362,216)
AS15-2076(M) - Delisle & Diophantus (SP-362,191)
AS15-93-12725(H) - Mare-related features bt. M. Imbrium & Oceanus Procellarum (SP-362,189)
Mons Gruithuisen (Lunascan)
Gruitheisen Domes (NASA)
Anomalous Clementine Images at Delisle (Wingate)