This report describes field work and research done in two areas of ultramafic rocks containing chromite deposits are known at the south end of Kenai Peninsula, Alaska. The Red Mountain is the other area covered in this report.

From introduction: The Red Bluff Bay area was examined briefly for the Geological Survey by John C. Reed and others in 1939. During the summer of 1941 the writers, with R. E. L. Rutledge, mapped this area on a scale of 1:12,000, and examined the serpentine masses in the interior during the course of reconnaissance trips into the surrounding region.

From introduction: The present report aims to supply additional information regarding the Tertiary deposits, which are the source of most of the gold placers now being worked in that part of the Eagle-Circle district lying south of the Yukon River. The work was conducted from base camps along the river, but the belt of Tertiary rocks is at places as much as 20 miles from the Yukon, so that it is not easily accessible from the river except in the vicinity of mining camps, where roads or trails have been constructed southward.

From abstract: The area here described includes most of the north side of the Alaska Range between the Delta and Johnson Rivers, in one direction, and the axis of the Alaska Range and the Tanana River in the other. Besides the Delta River, its principal streams are Jarvis Creek, the Gerstle and Little Gerstle Rivers, and, at the extreme east, the Johnson River, all of which have glacial sources.

From abstract: On the west coast of Chichagof Island, southeastern Alaska, are three nickel-copper deposits that consist of norite containing the sulfide minerals pyrrhotite, pentlandite, and chalcopyrite. The deposits are within less than a mile of each other and are, by water, 160 miles southwest of Juneau and 70 miles northwest of Sitka. The norite is part of a stock, about 5 square miles of which is above sea level. Other rocks of the stock are amphibolite, amphibolitic norite, gabbro, diorite, quartz diorite, monzonite, granite, pegmatites, quartz veins, and schist inclusions. The stock is intrusive into a Lower Cretaceous (?) graywacke formation and an Upper Triassic (?) greenstone formation, both of which are now metamorphosed to schist.

From abstract: The nickel-copper deposit near the north end of Admiralty Island, about 18 miles in an airline west of Juneau, in southeastern Alaska, consists of a basic sill which averages somewhat more than 100 feet in thickness. The sill, which dips eastward, is intrusive into a thick sequence of phyllite and various types of schist. The rock of the sill consists principally of the silicate minerals labradorite and olivine, but it also contains magnetite and the sulfides pyrrhotite, pentlandite, and chalcopyrite. It assays, on the average, about 0.34 percent nickel and 0.35 copper, which are doubtless mostly in the pentlandite and chalcopyrite respectively but are probably constituents of other minerals also. A significant proportion of nickel and copper is probably contained in the olivine and perhaps in the pyrrhotite.

From Introduction: "According to present knowledge, the deposits center principally, in three areas: Bonemia Basin on Yakobi Island, Mirror Harbor on Chicagof Island, and Snipe Bay on Baranof Island. This report deals only with the deposits of the most northerly area, in and near Bohemia Basin."

Abstract: At Snipe Bay, on the outer coast of Baranof Island, about 46 miles southeast of Sitka in southeastern Alaska, is a nickelcopper deposit that consists of a mass of basic rock intruded into quartzite and quartz schist. Neither the size nor the grade of the deposit is adequately known. Natural exposures and those in a few prospect openings indicate that to an assumed depth of about 130 feet below the lowest point on the outcrop there is a reserve of about 430,000 tons of low-grade nickelbearing material, which, to judge from available assays and from comparison with similar material from other places, probably does not contain more than 0.3 percent each of nickel and copper. The deposit thus appears too small and of too low grade to permit the recovery of the nickel and copper except at a considerable financial loss; but as the location is favorable for largescale, low-cost development, further prospecting may be justified, in the hope that a moderate amount of surface stripping, plus a few diamond-drill holes, might indicate that the deposit is larger, and possibly of higher grade, than it is safe to infer from the available data.

Abstract: In the accompanying report reference is made to all of the deposits in Alaska in which molybdenum minerals have been definitely recognized and reported. None of the deposits have been mined commercially, and none of them have been prospected thoroughly enough to afford quantitative estimates as to their tenor and potential reserves ; in fact, at only a few of the localities has there been more than surficial testing. Forty-one separate and distinct localities where molybdenum minerals occur are listed, and the available information on factors of geologic significance regarding each occurrence is given. A small-scale map of Alaska on which the various localities are indicated forms part of the bulletin, and in the text are extensive references to the various published reports and records of the Survey upon which the statements are based. In spite of the widespread distribution of molybdenum mineralization in Alaska, the remoteness of many of the localities, their handicap through dearth of transportation facilities and labor supplies, and the already wellsupplied condition of the American market for molybdenum ores discourage the early development of any of the known deposits or search for them in unsurveyed areas. These draw-backs will doubtless become -less important factors …

From abstract: The Stampede Creek area lies about 120 miles southwest of Fairbanks, Alaska. It is most readily accessible by air during the summer and by tractor road during the winter. Since 1936 approximately 2,400 tons of shipping-grade antimony ore and concentrates, containing about 1,300 tons of metallic antimony, have been produced at the Stampede mine. The mine was closed down in the spring of 1941, principally because of the high cost of transportation. The area is underlain largely by metamorphosed rocks of the Birch Creek schist. The schist has been warped and crumpled into many broad, open folds which strike northeast and also plunge to the northeast. The Stampede mine is in the schistose quartzite member of the Birch Creek schist.

Front: Text describes action on various war fronts: Tunisia, Supply, Libya, Toulon, Russia, New Guinea, Solomons, Aleutians. Large world map is keyed to text and illustrates time zones around the world. Includes inset maps: Tunisia -- Russian Front. Back: Maps and texts highlight the battleground of North Africa. Photographs: Crash landing -- Target sighted, mission completed -- Stalingrad strikes back.

Front: Text describes action on various war fronts: Libya; Tunisia; New Guinea; Solomons; China; Russia; Aleutians Large world map is keyed to text and illustrates time zones around the world. Includes inset maps: New Guinea; Mediterranean Sea; Russian front. Photographs: Supply dock; wrecked by recoil; Captured Italian flag; Hot on Rommel's heels; Yanks advance on Japs in New Guinea Back: Text describes the history and power of infantry. Includes 19 photographs and a map of Stalingrad and the Caucasus operations area.

Front: Text describes action on various war fronts: New Guinea -- Burma -- Solomons -- East Indies -- Tunisia -- Libya -- Russia -- Aleutians -- Pacific. Large world map is keyed to text and illustrates time zones around the world. Inset maps show roads and railways in Burma -- Tunisia, [Libya, and Algeria throughout the Mediterranean Sea and Italy]. Includes photographs: Tin Fish Launched [bomber] -- Mosquito Bomber -- Ready for Trouble [U.S. Warship loaded with ammunition] -- [trenches] -- [Moving an army] -- [Lockheed] -- Assault Gun [mounted on Mark III] Back: For Yanks Dreaming of A White Christmas. Text and photographs highlight the tasks in winter operations.

Front: Text describes action on various war fronts: Southwest Pacific, China, Aleutians, Atlantic, North Africa, Western Europe, Russia. Large world map is keyed to text and illustrates time zones around the world. Includes inset maps: China front, Russian front. Includes seven photographs. Back: Photographs show a variety of tanks utilized by the British Army.

Front: Text describes action on various war fronts. Large world map is keyed to text and illustrates time zones around the world. Includes inset maps: Strategic distances in the North Pacific ; Attu Island ; the Rat Island group ; Jap drives [in China]. Photographs: Jungle fighting; Battle of Carriers; Planes that hit the enemy; Swimming through flames; Tomahawk takes it. Back: "These are some of the weapons which checked Hitler's armies." Includes photographs: Moving in column to the attack -- Armored train alert -- Light armored cars -- Anti-aircraft alarm -- Ready to fire -- Formation to the front -- Anti-aircraft machine gun -- Woods used for cover -- Mortar ready to fire -- Amphibian tanks on land... -- Horse-drawn anti-tank gun -- ... and on the sea.

Front: Text desribes action on various war fronts: Solomons, Central and South Pacific; North Africa; Italy; Russia; Burma and India; China; Aleutians. Large world map is keyed to text and illustrates time zones around the world. Inset maps show North Africa; The Caucasus. Includes 10 photographs. Back: There is no all-purpose plane. 20 photographs show Heavy Bombers -- Medium and light bombers -- Fighters -- Torpedo bombers -- Transports -- Naval patrol planes. Text accompanies the photographs.

Front: Text describes action on various war fronts: North Africa, Libya, Southern Europe, New Guinea, Solomons, Russia, Aleutians, Far East waters, Madagascar. Large world map is keyed to text and illustrates time zones around the world. Smaller map (3 insets): Invasion of Africa. Photographs: Practice led to invasion -- Tanks land for beach operation -- German planes caught by long-range fighters -- Captured Nazi officers perch on hood of British jeep. Back: Why we fight! Also includes photographs.

Front: Text describes action on various war fronts: Russia, New Guinea, Solomons, Aleutians, China, Madagascar, Shipping, Mediterranean. Large world map is keyed to text and illustrates time zones around the world. Inset maps show South Russia, New Guinea, Target in Europe with inset of Industrial areas bombed in the Ruhr Valley. Includes photographs: WAFS report for duty, Armored "super jeep", South of Bengazi, Tank landing, "Guiding plane back home to roost". Back: Training (Action! -- Solomons -- Landing operations -- Europe). 21 photographs accompanied by descriptive and explanatory text.

Front: Text describes action on various war fronts: Aleutians, New Guinea, Solomons, Far eastern waters, Russia, Mediterranean, Western Europe. Large world map is keyed to text and illustrates time zones around the world. Inset maps show Aleutian Islands; Southwest Pacific. Includes photographs: Nazi medium artillery field pieces, Long range patrol, Canadian paratroopers graduate, "Paratroopers train for action". Back: Convoy. 15 photographs with text describe a typical journey of a convoy of troops across an ocean.

Front: Text describes action on various fronts: Solomons, New Hebrides, New Guinea, Aleutians, Far Eastern waters, Russia, Mediterranean, Western Europe. Large world map is keyed to text and illustrates time zones around the world. Inset maps show Guadalcanal Island, Tulagi; Russian front. Includes photographs: Alaska road in use by December (construction of the Alaska Defense Highway); Zero fighter; in the Solomons; German mobile gun; Insect protection. Back: Airborne Command. 12 photographs with descriptive text and explanation of the role of airborne troops.

Front: Text describes action on various war fronts: Solomons -- New Guinea -- Aleutians -- Russia -- Shipping -- Mediterranean -- Yugoslavia -- Western Europe. Large world map is keyed to text and illustrates time zones around the world. Inset maps show Southwest Pacific -- Stalingrad. Includes photographs: Airport on Guadalcanal Island -- Somewhere in India [field artillery pieces and Gen. Stillwell's troops wearing German-type coal scuttle helmet] -- Supplies for Russia [Arctic convoy attacked by enemy torpedo planes and U boats] -- Freight cars with wings. Back: Foxholes are Lifesavers. 9 photographs show details of foxhole construction. Text describes advantages and proper use of foxholes in combat.

Front: Text describes action on various war fronts: Russia, Madagascar, Solomon Islands, New Guinea, Aleutians, Far Eastern waters, Midway, China, West Coast, Western Europe, Mediterranean. Large map is keyed to text and illustrates time zones around the world. Inset maps show: Madagascar; Russian front (southern sectors), Madagascar in Africa Includes photographs: Night falls in North Africa; Stinger [twin machine-gun]; It was "impossible" [Capt. Edward Ellsberg's sub salvage work]; Blimps hunt subs. Back: Somewhere in Alaska. 13 photographs are captioned. Text headlined: Alaska's Defenders Go Underground. Includes map labeled: Still Our Northern Frontier.

Front: Text describes action on various war fronts: Western Europe, Iceland, North Africa, Aleutians, New Guinea, Australia, Burma, Russia. Large world map is keyed to text and illustrates time zones around the world. Map inset shows the Russian front. Includes photographs: Jap welcomers; Over barbed wire; The Nazi 88; Converted merchantman; U.S. Army's troopship of the skies. Back: This is Aid to Russia. 10 photographs are accompanied by explanatory text.

Front: Text describes action on various war fronts: Solomon Islands, New Guinea, Aleutians, China, India, Western Europe, Yugoslavia, Mediterranean, Russia. Large world map is keyed to text and illustrates time zones around the world. Map insets show Solomon Islands, Russian front. Includes photographs: view of Tulagi; German fighter; Facing the Nazis; Sniper suit; A traitor covers up; Club for U.S. forces on London. Back: British Battle Dress. Includes 6 photograhs, 4 drawings with accompanying text.