Dumyat, the hill at the western extremity of the Ochil Hills. The Ochil Hills are a range of hills in Scotland north of the Forth valley bordered by the towns of Stirling, Alloa, Kinross and Perth. ...

The name is thought to originate as Dun (hill fort) of the Meatae.

This is a relatively small hill (height 418 metres) but is very interesting in appearance, and is conspicuous from many locations in and around the Stirling area. Stirling (Sruighlea in Gaelic) is a city in Central Scotland, in the district of Stirling. ...

Dumyat has two principal summits, Castle Law on the west, and Dumyat proper on the east. On the summit of Castle Law, the remains of an ancient hill fort, no doubt originally occupied by the Meatae, are still clearly discernible.

At one time the favourite route to the summit of either Dumyat or Castle Law was via the prominent gulley which runs almost straight up the southern scarp face, and continues down the gently sloping north face. This gulley was formed by the erosion of a fault, resulting from the juxtaposition of soft pyroclastic rocks on one side against harder andesite and basalt on the other. This has resulted in an area where hard andesite slightly overhangs, and is the darkest and least exposed part of the climb, which is not particularly difficult. Further gullies, formed by secondary tearing around the main fault (itself a product of the major disturbance which resulted from the Ochil Fault) extend to the right into Dumyat, and form potential shortcuts to the summit. The first of these, Raeburn's Gulley, is particularly dangerous and should only be attempted by experienced and properly equipped rock climbers, however the second, Siart Gulley, is climbable by anyone of average ability, if care is taken in scrambling up the steep step at the end. The third, fourth and fifth gullies are not named, and become progressively easier. There are various types of faults: In document ISO/CD 10303-226, a fault is defined as an abnormal condition or defect at the component, equipment, or sub-system level which may lead to a failure. ... Pyroclastic rocks are formed from lavas which are ejected into the air, as occur in pyroclastic flows or Plinian eruptions. ... A sample of andesite (dark groundmass) with amygdaloidal vesicules filled with zeolite. ... Basalt Basalt is an extrusive igneous rock, sometimes porphyritic, and is often both fine-grained and dense. ... A sample of andesite (dark groundmass) with amygdaloidal vesicules filled with zeolite. ... The Ochil Fault is the geological feature which defines the southern face of the Ochil Hills escarpment. ...

Nowadays many people park their cars on Sheriffmuir and take a longer but more gently sloping path to the summit, passing behind, i.e. slightly to the north of, the summit of Castle Law. The third route is via Menstrie Glen from the east, and is a somewhat gentle ascent in the beginning, which steepens satisfactorily for those who like a decent climb, as the summit is approached. Sheriffmuir (or Sheriff Muir), the site of the inconclusive 1715 Battle of Sheriffmuir (part of the Jacobite rising), lies on the slopes of the Ochil Hills just inside the Perthshire border in Scotland. ... Menstrie Glen is the valley which separates Dumyat from Myreton Hill and the main body of the Ochil Hills. ...

Photographs will be added later of views from the summit.

Dumyat is essentially sheep-farming terrain, but there has been some mining of copper and barytes. Description to be aded later. If you know what to look for, the scree on the scarp face of Castle Law is a source of agates, not necessarily of the finest quality, but occasionally other specimens such as smoky quartz and citrine can be found, along with the inevitable quartz, calcite, barytes, and two ores of copper, malachite, and less commonly, azurite. General Name, Symbol, Number copper, Cu, 29 Chemical series transition metals Group, Period, Block 11, 4, d Appearance metallic brown Atomic mass 63. ... Barium sulfate (or barium sulphate, BaSO4) is a compound (a type of salt made from barium and sulphur) frequently used clinically as a radiocontrast agent for X-ray imaging and other diagnostic procedures. ... Scree slopes in Corrie Laggan, part of the Cuillin range on Skye Scree is a term given to broken rock that appears at the bottom of mountain cliffs. ... Agate is a term applied not to a distinct mineral species, but to an aggregate of various forms of silica, chiefly chalcedony. ... Categories: Mineral stubs | Minerals | Quartz varieties ... Citrine, also called citrine quartz or citrine topaz, is an amber_coloured gemstone. ... Quartz is the most abundant mineral in the Earths continental crust. ... Calcite from Brushy Creek Mine, Missouri, USA. The carbonate mineral calcite is a calcium carbonate corresponding to the formula CaCO3 and is one of the most widely distributed minerals on the Earths surface. ... Barium sulfate (or barium sulphate, BaSO4) is a compound (a type of salt made from barium and sulphur) frequently used clinically as a radiocontrast agent for X-ray imaging and other diagnostic procedures. ... Malachite from the Democratic Republic of Congo Malachite is a carbonate mineral, copper(II) carbonate hydroxide Cu2CO3(OH)2. ... Azurite Azurite ground as a pigment Azurite crystals Azurite is a carbonate mineral with chemical composition Cu3(CO3)2(OH)2, (copper carbonate hydroxide). ...