LAKES IN RELATION TO GEOLOGICAL FEATURES 499 
Grennoch. — Rock-basin in the granite massif of Cairnsmore of Fleet. 
Grunavat. — Rock-basin in Lewisian Gneiss. 
Gryfe. — Artificial reservoir^ partly in boulder clay and partly in Lower 
Carboniferous volcanic rocks of the Renfrewshire plateau. 
Harelaw. — Artificial reservoir on Malleny Burn. It occupies a hollow 
cut out of boulder clay overlying Lower Carboniferous rocks. 
Harperleas.— Artificial reservoir^ partly in boulder clay and partly in 
Lower Carboniferous strata. 
Harperrig. — Artificial reservoir in wide open valley, partly in Lower 
Carboniferous rocks and partly in boulder clay covered in places by 
peat and alluvium. 
Harray. — Rock-basin in Middle Old Red flagstones^ separated from the 
Loch of Stenness by a shallow rock-floored channel over which salt 
water from Loch Stenness occasionally flows. 
Harrow. — Partly ponded by drift and partly a rock-basin in greywackes 
and shales. 
Hejlen. — Impounded on north side by blown sand of Dunnet Links. It 
lies partly in boulder clay and partly in Caithness flagstones. 
Hempriggs. — Shallow loch in boulder clay lying on Caithness flagstones. 
Heouravay. — Irregular rock-basin in Lewisian Gneiss. 
Hermidale. — Irregular rock-basin in Lewisian Gneiss. 
Hightae Mill. — Kettle-hole in fluvio-glacial deposits. One of the 
Lochmaben lochs. 
HoGLiNNs. — Small rock-basin in Upper Old Red Sandstone of Hoy. 
HoLL. — Artificial reservoir, partly in boulder clay resting on Lower Car- 
boniferous strata and intrusive dolerite. 
Hope.— Vol. II. Part I. p. 328. 
HosTA. — Rock-basin in Lewisian Gneiss. 
Hostigates. — Rock-basin in Old Red Sandstone. 
Howie. — Partly in Silurian greywackes and partly drift-dammed. 
HuNA. — Partly in Lewisian Gneiss and partly ponded by drift. 
Hunder. — Rock-basin in Lewisian Gneiss. 
HuNDLAND. — Partly in Old Red flagstones and partly in boulder clay. 
Iasgaich, an. — Hollow in Lewisian Gneiss. 
Ic CoLLA.- — Rock-basin in Lewisian Gneiss. 
Inbhir. — Minor rock-basin in granite and schist studded with moraines. 
One of the outlets from the Rannoch Moor ice- cauldron, now 
covered by the Leven reservoir (see Loch a' Bhaillidh). 
Insh. — Remnant of a much larger lake in the Spey valley ponded by 
moraines and fluvio-glacial deposits from the Glen Feshie glacier 
at a time when the Spey glacier failed to reach and coalesce with 
it. The lake is now almost silted up by the Spey. 
Isbister. — Ponded by drift. 
luBHAiR.— Vol. II. Part 1. p. 138. 
Katrine —Vol. II. Part I. p. 48. 
Kemp. — Rock-basin on the platform above Loch Ness (see Loch Bran). 
