26 inclusions at Anyox, Hastings arm, and Georgia river, the intrusives occupy the whole of the area west of Alice Arm district. South of Alice Arm the eastern border of the intrusives runs southeast to beyond Nass river. North from Alice arm the border strikes north for 8 miles to Klayduc mountain. On the southern slope of this mountain the contact with Hazelton group sediments is very well exposed between elevations of 2,000 and 5,800 feet. The sediments there dip steeply west, strike northwest, and both along the strike and the dip have been truncated by the intrusives. In several places tongues of granite project into the sediments and for many hundreds of feet follow along the bedding planes. Beyond Klayduc mountain the east- ern border follows a northwesterly course to the head of Hastings arm where it swings northeast to the Cambria snowfield. There the border turns north- west and enters the southern part of Marmot River district. In that dis- trict the contact dips northeast at nearly the same angle as the dip of the adjacent rocks. At Stewart the edge of the batholithic rocks makes an abrupt turn to the north and northeast and then back to the west and follows Salmon River valley, but has been traced only imperfectly. farther northwest. At Stewart the contact also dips parallel with the dip of the intruded rock. The rock of the batholith is on the whole massive, but locally near the contact with the Hazelton group strata it has been slightly sheared. It is grey, medium to coarse-grained granodiorite and quartz diorite. The com- mon, dark mineral is hornblende, but biotite is usually present as well. The feldspars are orthoclase, oligoclase, and andesine. Quartz is present in all specimens examined and titanite and apatite are common accessory min- erals. In some places, as at the head of Hastings arm, the rock over an area of several square miles is pink and contains large, pink phenocrysts of orthoclase in a medium-grained, crystalline base. This rock is unaltered and may be younger than the main body of batholithie rocks. Locally the pink variety contains very much quartz. A small stock on the property of Tidewater Mines, Limited, at Alice arm near the border of the Coast Range intrusives and presumably corre- lative with them, is composed of granite and contains quartz, orthoclase, albite, muscovite, and, locally, molybdenite. A stock of granodiorite out- crops in Bear River valley near Glacier creek and another smaller stock occurs near the head of Bear river. A small body of white, intrusive rock outcrops below the Silverado mine, Bear River district. The rock consists almost entirely of sodic plagioclase and quartz; it contains no biotite nor hornblende. The exact size and shape of this body and its relationship to the batholith are unknown. It is at least 200 yards wide and may be much longer. It lies at the contact between the batholith and Hazelton Group volcanic rocks. Several small stocks of granitic rock occur west and south- west of Summit lake north of Salmon River district. The rock of these bodies is granodiorite but is much more altered than is usual in the case of the Coast Range intrusives of the area. The various stocks may be asso- ciated in origin with the main batholith. In Salmon River district, Alaska, however, Buddington and Chapin! have secured evidence of the existence *“Geology and Mineral Deposits of Southeastern Alaska”; U.S. Geol. Surv., Bull. 800 (1929).